The many Scales of the UniverseGalaxies their Suns and their Planets
Annual Meeting of the Astronomische Gesellschaft 2017
Gottingen September 18ndash22 2017
Contents
Preamble 4
Organizers 7
Logistics 8
Detailed Program 9
Plenary Talks 17
Splinter Meeting 40
Satellite Events 63
Posters 67
List of Participants 71
Conference Venue (Maps) 82
Should you have any questions related to the conference organization or needother help please feel free to contact the conference office
Phone +49 (551) 39-5042email locag2017uni-goettingende
We wish you an inspiring and productive conference and hope you will enjoyyour stay in Gottingen
PREAMBLE
Preamble
Dear colleagues and friends
for an astronomer and astrophysi-cist coming to Gottingen is likecoming home So preeminenthas been the scientific heritage ofsome of the most prominent ti-tans of our field ndash Carl FriedrichGauszlig (do I need to say more)and Karl Schwarzschild ndash the lat-ter one often referred to as ldquoFa-ther of Astrophysicsrdquo And in-deed it was Gottingen where
Image AIP
Schwarzschild wrote his fundamental works on the theory of optical systems onthe structure of the solar atmosphere and on the stellar kinematics of the solarneighborhood The German Astronomical Society honors the many ground-braking works of Karl Schwarzschild by commemorating his legacy with thehighest honor German Astronomy has to bestow ndash The Karl SchwarzschildMedal The associated Karl Schwarzschild lecture traditionally opens the sci-ence program of our meeting ndash this year by recognizing one of the pioneers ofGerman radio astronomy the former director at the MPI for RadioastronomyProf Richard Wielebinski
The purpose of the meetings by professional societies is however also to pro-mote the field outside of the immediate realm of scientific exchange to addressdecision makers and to emphasize the science-political needs of our field In-deed few fields depend on major science infrastructures in a way as astronomydoes It is therefore also appropriate to use this yearrsquos gathering to present tothe public the Denkschrift (memorandum) 2017 ldquoPerspectives of astrophysicsin Germany 2017ndash2030 From the beginnings of the cosmos to clues for life onextrasolar planetsrdquo This long-term review and plan bears testament to an im-pressive development of our research field in the past 15 years The Denkschriftlays out projects and recommendations that we the German astronomical com-munity consider crucial to keep German astronomy well-positioned in the inter-
4 Annual Meeting of the Astronomische Gesellschaft 2017
PREAMBLE
national competition to unravel the mysteries of the Universe The Denkschriftwill be presented to the public in a press conference after the Award ceremonyon Tuesday
Let me close with my special thanks to the scientific organizing committeearound Stefan Dreizler and Sami Solanki and the local organizing team aroundKlaus Reinsch and Sonja Schuh for all the efforts they have put into this event
With the best wishes for a scientifically stimulating meeting
Matthias SteinmetzPresident of the AG
Dear colleagues and friends
Gottingen has been the venue of six meet-ings of the German Astronomical Society(Astronomischen Gesellschaft AG) since1902 A momentous occasion in this seriesof AG meetings in Gottingen was the re-founding of the AG after the Second WorldWar 70 years ago The last of this seriesso far was in 1999 ie still in the last mil-lennium Since then astronomical researchin Gottingen has seen quite some changesThe astrophycisists left the historical build-ing of the University Observatory whereamong others Carl Friedrich Gauszlig and Karl
Image Uni Gottingen
Schwarzschild were directors The Institute for Astrophysics Gottingen (IAG)is now in the new building of the Physics Department the main venue of thisyearrsquos AG meeting The new name of the institute underlines how deeplyastrophysics is embedded in the research and teaching environment in the de-partment of physics The closer connection to colleagues and students is ofsimilar importance as the new infrastructure
Gottingen September 18ndash22 2017 5
PREAMBLE
At the time of the last AG meeting in Gottingen the Max Planck Institutefor Solar System Research (MPS) was still called the Max Planck Institute forAeronomy (MPAe) and was located in the little village of Katlenburg-LindauIt was relocated to Gottingen in 2014 in close vicinity to the IAG The newMPS building will be the venue of the conference dinner as well as of splintermeetings The new building as well as the better connection to scientists andstudents in astrophysics and other departments at the Gottingen Campus isof great mutual benefit A direct consequence was the implementation of athird director position at MPS as joint professor with the IAG as well as a newprofessor position at the IAG
Today both institutes form a research focus in astrophysics ranging from cos-mology stellar and solar physics to planetary science inside and outside of oursolar system MPS and IAG are also leading institutions in developing andbuilding space and ground based instrumentation As examples for a muchlarger variety of activities the IAG has contributed instrumentation for var-ious observatories (eg MUSE MICADO CARMENES HETDEX) whilethe MPS has provided a variety of instruments to a series of ESA and NASAspace missions (ROSETTA DAWN Solar ORBITER) and the balloon borneobservatory SUNRISE
The Institute for Astrophysics and the Max Planck Institute for Solar SystemResearch would like to welcome you to our jointly organized Annual Meeting ofthe German Astronomical Society 2017 The versatile program under the titleldquoThe many Scales of the Universe Galaxies their Suns and their Planetsrdquooffers you an exciting set of plenary talks as well as a rich spectrum of splintermeetings and poster sessions We hope that you will make use of the numerousopportunities for interesting and lively discussions after the talks during thebreaks in the poster sessions and at the conference dinner
Stefan Dreizler(on behalf of the Scientific Organizing Committee)
6 Annual Meeting of the Astronomische Gesellschaft 2017
ORGANIZERS
Scientific Organizing CommitteeStefan Dreizler (Universitat Gottingen chair)
Sami Solanki (MPS Gottingen co-chair)
Conny Aerts (KU Leuven)
Matthias Bartelmann (Universitat Heidelberg)
Barbara Ercolano (LMU Munchen)
Susanne Huttemeister (Universitat Bochum)
Michael Kramer (MPIfR Bonn)
Nathalie Krivova (MPS Gottingen)
Matthias Steinmetz (AIP Potsdam)
Stefanie Walch (Universitat Koln)
Joachim Wambsganszlig (Universitat Heidelberg)
Local Organizing CommitteeKlaus Reinsch (Universitat Gottingen chair) Sonja Schuh (MPS Gottingenco-chair) Regina von Berlepsch (AIP Potsdam) Nicole Boker (Universitat Got-tingen) Ines Dominitzki (MPS Gottingen) Klaus Jager (MPIA Heidelberg)Wolfram Kollatschny (Universitat Gottingen) Daniela Krone (Universitat Got-tingen) Birgit Krummheuer (MPS Gottingen) Andreas Lagg (MPS Gottingen)Hardi Peter (MPS Gottingen) Sibylla Siebert-Rust (MPS Gottingen) ThomasWiegelmann (MPS Gottingen) Klaudia Wolters (Universitat Gottingen)
Local Organizing Committee SupportKinga Albert Matthias Ammler-von-Eiff Gesa Becker Benjamin BischoffAlessandro Cilla Merten Dahlkemper Meike Fischer Fabian Gottgens ElianaAmazo Gomez Rick Hessman Tim-Oliver Husser Hans Huybrighs Erik John-son Felix Mackebrandt David Marshall Sven Martens Mayukh Panja Paul-Louis Poulier Bastian Proxauf Noah Molinski Catharina Rogge Kamal SantSudharshan Saranathan Mira Schmitt Mariangela Viviani Franziska Zeuner
Gottingen September 18ndash22 2017 7
LOGISTICS
Logistics
Wireless Network Access
Wireless network is available in all lecture and seminar rooms of the conferenceIf you do not have access to eduroam you may ask for a guest voucher at theregistration desk to obtain access to the GuestOnCampus network
Guided Tours
Guided tours through the laboratories at the Institute for Astrophysics andat the Max Planck Institute for Solar System Research will be offered duringlunch breaks There will also be opportunities to visit the Physical Cabinetwith a collection of historical instruments next to the main lecture room
The number of participants for all guided tours will be limited Please enscribein the lists provided at the registration desk
Lunch Options
The Dining Hall (Nordmensa) is open for lunch from 1115 to 1415 (Mondayto Thursday) and from 1115 to 1400 on Friday It is located at some 5 minuteswalking distance from the physics building (see map) and includes a bistro andcoffee bar (coffeebar ins grune)
Information about dishes is available underhttpswwwstudentenwerk-goettingendespeiseplanhtmlL=1
There is also a cafeteria (CaPhy) in the basement of the physics building (nextto the main lecture room) where you can buy snacks sandwiches soft drinksetc
It is possible to pay cash in the Nordmensa and in the cafeterias
Besides that you can find fast food options and a Chinese restaurant at theshopping center on the street ldquoAn der Lutterrdquo below the crossing with Robert-Koch-Straszlige in 10 minutes walking distance (see map)
8 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
Detailed Program
This is the detailed program as of September 8thYou will find additional and updated informa-tion on the conference website httpag2017uni-goettingende
You can get there using this QR-Code
Lecture Halls
All plenary talks will be held in the main lecture room (HS1 ndash Horsaal 1)of the faculty of physics (Friedrich-Hund-Platz 1 37077 Gottingen) Splintermeetings will be held in the lecture rooms of the physics building (HS1 HS2HS3 HS4 and HS5) and in the Max Planck Institute for Solar System Research(Justus-von-Liebig-Weg 3 37077 Gottingen) just across the road (A+B+CMPS D+E+F MPS and Auditorium MPS) The locations are shown on themap in this booklet In addition signs in the buildings will guide you
Monday 18 September 2017
0900ndash1800 Arbeitskreis AstronomiegeschichteHistorische Sternwarte Geismarlandstr 11
0900ndash1300 Meeting AG Board (closed session) H MPS
1300ndash1800 RDS Meeting (closed session) Auditorium MPS
1300ndash1600 Young Astrophysicists Meeting A+B+C MPS
1600ndash1800 Astro-Frauen-Netzwerk Get-together A+B+C MPS
1830ndash2030 Welcome Reception Alte Mensa Wilhelms-Platz 3
1830 Welcome AddressesRolf-Georg Kohler (Mayor of the City of Gottingen)Prof Dr Stefan Dreizler (Chair Scientific OrganizingCommittee)
Gottingen September 18ndash22 2017 9
DETAILED PROGRAM
Tuesday 19 September 2017
0900ndash1030 Opening amp Award Ceremonies HS1
Music Joseph Haydn Divertimento B major for wind quintet
0900 Opening and ChairpersonProf Dr Matthias Steinmetz (President of the Astro-nomical Society)
Welcome AddressesProf Dr Ulrike Beisiegel (President of the Georg-August-Universitat Gottingen)Prof Dr Tim Salditt (Dean of the Faculty of Physics)Prof Dr Sami Solanki (Director at the MPI for Solar System Research)
0930 Karl Schwarzschild Lecture ndash Richard WielebinskiCosmic magnetic fields
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Award Ceremonies (continued) HS1
Chairperson M Steinmetz
1100 Ludwig Biermann Award Talk ndash Diederik KruijssenThe Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
1130 PhD Award Talk ndash Philipp GreteLarge eddy simulations of compressible magnetohydro-dynamic turbulence
1150 Instrumentation Award Talk ndash Albrecht PoglitschrdquoEs gibt nicht Gutes auszliger man tut esrdquo ndash Reflectionson progress in astronomical Instrumentation
1210 AwardsBruno H Burgel Award Hans-Ulrich KellerRoelin Award Michael WinkhausJugend-forscht AwardMaximilian Marienhagen Toni Ringling Aaron Wild
10 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1230ndash1400 Lunch Break
1400ndash1500 Press Conference ndash Denkschrift Astronomiehttpwwwdenkschrift2017de A+B+C MPS
1400ndash1630 Splinter Meetings
CCAT CCAT-prime new submillimeter scienceopportunities
Auditorium MPS
Computation Computational Astrophysics HS3
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
Non-Thermal Surveying the non-thermal Universe HS4
Plasma Space Plasma Processes in Stellar andPlanetary Environments
D+E+F MPS
Populations Stellar Populations in and around theMilky Way
HS5
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash2000 Mitgliederversammlung derAstronomischen Gesellschaft Auditorium MPS
Gottingen September 18ndash22 2017 11
DETAILED PROGRAM
Wednesday 20 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M Sasaki
0900 Karl GebhardtThe HETDEX Dark Energy Experiment
0930 Bringfried StecklumAccretion outbursts from high-mass young stellar ob-jects
1000 Harold YorkeSOFIA in the Era of JWST and ALMA
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson A Hatzes
1100 Rolf SchlichenmaierSolar magnetoconvection observed with GREGOR
1130 Istvan DekanyClassical pulsators as population tracers a journey tothe far side of the Milky Way
1200 Sebastian KamannA MUSE view on Galactic globular clusters
1230ndash1240 Conference photo HS1
1240ndash1400 Lunch Break
1240ndash1340 AFN Pizza Lunch Meeting SR17
12 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
AGN Active Galactic Nuclei HS4
Computation Computational Astrophysics HS3
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1400ndash1630 Public Outreach Meeting SR17
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
AGN Active Galactic Nuclei HS4
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1700ndash1900 Public Outreach Meeting SR17
1930ndash2200 Conference Dinner Foyer MPS
Music MegaGauss band Max Planck Institute for Solar System Research
Gottingen September 18ndash22 2017 13
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
PREAMBLE
Preamble
Dear colleagues and friends
for an astronomer and astrophysi-cist coming to Gottingen is likecoming home So preeminenthas been the scientific heritage ofsome of the most prominent ti-tans of our field ndash Carl FriedrichGauszlig (do I need to say more)and Karl Schwarzschild ndash the lat-ter one often referred to as ldquoFa-ther of Astrophysicsrdquo And in-deed it was Gottingen where
Image AIP
Schwarzschild wrote his fundamental works on the theory of optical systems onthe structure of the solar atmosphere and on the stellar kinematics of the solarneighborhood The German Astronomical Society honors the many ground-braking works of Karl Schwarzschild by commemorating his legacy with thehighest honor German Astronomy has to bestow ndash The Karl SchwarzschildMedal The associated Karl Schwarzschild lecture traditionally opens the sci-ence program of our meeting ndash this year by recognizing one of the pioneers ofGerman radio astronomy the former director at the MPI for RadioastronomyProf Richard Wielebinski
The purpose of the meetings by professional societies is however also to pro-mote the field outside of the immediate realm of scientific exchange to addressdecision makers and to emphasize the science-political needs of our field In-deed few fields depend on major science infrastructures in a way as astronomydoes It is therefore also appropriate to use this yearrsquos gathering to present tothe public the Denkschrift (memorandum) 2017 ldquoPerspectives of astrophysicsin Germany 2017ndash2030 From the beginnings of the cosmos to clues for life onextrasolar planetsrdquo This long-term review and plan bears testament to an im-pressive development of our research field in the past 15 years The Denkschriftlays out projects and recommendations that we the German astronomical com-munity consider crucial to keep German astronomy well-positioned in the inter-
4 Annual Meeting of the Astronomische Gesellschaft 2017
PREAMBLE
national competition to unravel the mysteries of the Universe The Denkschriftwill be presented to the public in a press conference after the Award ceremonyon Tuesday
Let me close with my special thanks to the scientific organizing committeearound Stefan Dreizler and Sami Solanki and the local organizing team aroundKlaus Reinsch and Sonja Schuh for all the efforts they have put into this event
With the best wishes for a scientifically stimulating meeting
Matthias SteinmetzPresident of the AG
Dear colleagues and friends
Gottingen has been the venue of six meet-ings of the German Astronomical Society(Astronomischen Gesellschaft AG) since1902 A momentous occasion in this seriesof AG meetings in Gottingen was the re-founding of the AG after the Second WorldWar 70 years ago The last of this seriesso far was in 1999 ie still in the last mil-lennium Since then astronomical researchin Gottingen has seen quite some changesThe astrophycisists left the historical build-ing of the University Observatory whereamong others Carl Friedrich Gauszlig and Karl
Image Uni Gottingen
Schwarzschild were directors The Institute for Astrophysics Gottingen (IAG)is now in the new building of the Physics Department the main venue of thisyearrsquos AG meeting The new name of the institute underlines how deeplyastrophysics is embedded in the research and teaching environment in the de-partment of physics The closer connection to colleagues and students is ofsimilar importance as the new infrastructure
Gottingen September 18ndash22 2017 5
PREAMBLE
At the time of the last AG meeting in Gottingen the Max Planck Institutefor Solar System Research (MPS) was still called the Max Planck Institute forAeronomy (MPAe) and was located in the little village of Katlenburg-LindauIt was relocated to Gottingen in 2014 in close vicinity to the IAG The newMPS building will be the venue of the conference dinner as well as of splintermeetings The new building as well as the better connection to scientists andstudents in astrophysics and other departments at the Gottingen Campus isof great mutual benefit A direct consequence was the implementation of athird director position at MPS as joint professor with the IAG as well as a newprofessor position at the IAG
Today both institutes form a research focus in astrophysics ranging from cos-mology stellar and solar physics to planetary science inside and outside of oursolar system MPS and IAG are also leading institutions in developing andbuilding space and ground based instrumentation As examples for a muchlarger variety of activities the IAG has contributed instrumentation for var-ious observatories (eg MUSE MICADO CARMENES HETDEX) whilethe MPS has provided a variety of instruments to a series of ESA and NASAspace missions (ROSETTA DAWN Solar ORBITER) and the balloon borneobservatory SUNRISE
The Institute for Astrophysics and the Max Planck Institute for Solar SystemResearch would like to welcome you to our jointly organized Annual Meeting ofthe German Astronomical Society 2017 The versatile program under the titleldquoThe many Scales of the Universe Galaxies their Suns and their Planetsrdquooffers you an exciting set of plenary talks as well as a rich spectrum of splintermeetings and poster sessions We hope that you will make use of the numerousopportunities for interesting and lively discussions after the talks during thebreaks in the poster sessions and at the conference dinner
Stefan Dreizler(on behalf of the Scientific Organizing Committee)
6 Annual Meeting of the Astronomische Gesellschaft 2017
ORGANIZERS
Scientific Organizing CommitteeStefan Dreizler (Universitat Gottingen chair)
Sami Solanki (MPS Gottingen co-chair)
Conny Aerts (KU Leuven)
Matthias Bartelmann (Universitat Heidelberg)
Barbara Ercolano (LMU Munchen)
Susanne Huttemeister (Universitat Bochum)
Michael Kramer (MPIfR Bonn)
Nathalie Krivova (MPS Gottingen)
Matthias Steinmetz (AIP Potsdam)
Stefanie Walch (Universitat Koln)
Joachim Wambsganszlig (Universitat Heidelberg)
Local Organizing CommitteeKlaus Reinsch (Universitat Gottingen chair) Sonja Schuh (MPS Gottingenco-chair) Regina von Berlepsch (AIP Potsdam) Nicole Boker (Universitat Got-tingen) Ines Dominitzki (MPS Gottingen) Klaus Jager (MPIA Heidelberg)Wolfram Kollatschny (Universitat Gottingen) Daniela Krone (Universitat Got-tingen) Birgit Krummheuer (MPS Gottingen) Andreas Lagg (MPS Gottingen)Hardi Peter (MPS Gottingen) Sibylla Siebert-Rust (MPS Gottingen) ThomasWiegelmann (MPS Gottingen) Klaudia Wolters (Universitat Gottingen)
Local Organizing Committee SupportKinga Albert Matthias Ammler-von-Eiff Gesa Becker Benjamin BischoffAlessandro Cilla Merten Dahlkemper Meike Fischer Fabian Gottgens ElianaAmazo Gomez Rick Hessman Tim-Oliver Husser Hans Huybrighs Erik John-son Felix Mackebrandt David Marshall Sven Martens Mayukh Panja Paul-Louis Poulier Bastian Proxauf Noah Molinski Catharina Rogge Kamal SantSudharshan Saranathan Mira Schmitt Mariangela Viviani Franziska Zeuner
Gottingen September 18ndash22 2017 7
LOGISTICS
Logistics
Wireless Network Access
Wireless network is available in all lecture and seminar rooms of the conferenceIf you do not have access to eduroam you may ask for a guest voucher at theregistration desk to obtain access to the GuestOnCampus network
Guided Tours
Guided tours through the laboratories at the Institute for Astrophysics andat the Max Planck Institute for Solar System Research will be offered duringlunch breaks There will also be opportunities to visit the Physical Cabinetwith a collection of historical instruments next to the main lecture room
The number of participants for all guided tours will be limited Please enscribein the lists provided at the registration desk
Lunch Options
The Dining Hall (Nordmensa) is open for lunch from 1115 to 1415 (Mondayto Thursday) and from 1115 to 1400 on Friday It is located at some 5 minuteswalking distance from the physics building (see map) and includes a bistro andcoffee bar (coffeebar ins grune)
Information about dishes is available underhttpswwwstudentenwerk-goettingendespeiseplanhtmlL=1
There is also a cafeteria (CaPhy) in the basement of the physics building (nextto the main lecture room) where you can buy snacks sandwiches soft drinksetc
It is possible to pay cash in the Nordmensa and in the cafeterias
Besides that you can find fast food options and a Chinese restaurant at theshopping center on the street ldquoAn der Lutterrdquo below the crossing with Robert-Koch-Straszlige in 10 minutes walking distance (see map)
8 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
Detailed Program
This is the detailed program as of September 8thYou will find additional and updated informa-tion on the conference website httpag2017uni-goettingende
You can get there using this QR-Code
Lecture Halls
All plenary talks will be held in the main lecture room (HS1 ndash Horsaal 1)of the faculty of physics (Friedrich-Hund-Platz 1 37077 Gottingen) Splintermeetings will be held in the lecture rooms of the physics building (HS1 HS2HS3 HS4 and HS5) and in the Max Planck Institute for Solar System Research(Justus-von-Liebig-Weg 3 37077 Gottingen) just across the road (A+B+CMPS D+E+F MPS and Auditorium MPS) The locations are shown on themap in this booklet In addition signs in the buildings will guide you
Monday 18 September 2017
0900ndash1800 Arbeitskreis AstronomiegeschichteHistorische Sternwarte Geismarlandstr 11
0900ndash1300 Meeting AG Board (closed session) H MPS
1300ndash1800 RDS Meeting (closed session) Auditorium MPS
1300ndash1600 Young Astrophysicists Meeting A+B+C MPS
1600ndash1800 Astro-Frauen-Netzwerk Get-together A+B+C MPS
1830ndash2030 Welcome Reception Alte Mensa Wilhelms-Platz 3
1830 Welcome AddressesRolf-Georg Kohler (Mayor of the City of Gottingen)Prof Dr Stefan Dreizler (Chair Scientific OrganizingCommittee)
Gottingen September 18ndash22 2017 9
DETAILED PROGRAM
Tuesday 19 September 2017
0900ndash1030 Opening amp Award Ceremonies HS1
Music Joseph Haydn Divertimento B major for wind quintet
0900 Opening and ChairpersonProf Dr Matthias Steinmetz (President of the Astro-nomical Society)
Welcome AddressesProf Dr Ulrike Beisiegel (President of the Georg-August-Universitat Gottingen)Prof Dr Tim Salditt (Dean of the Faculty of Physics)Prof Dr Sami Solanki (Director at the MPI for Solar System Research)
0930 Karl Schwarzschild Lecture ndash Richard WielebinskiCosmic magnetic fields
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Award Ceremonies (continued) HS1
Chairperson M Steinmetz
1100 Ludwig Biermann Award Talk ndash Diederik KruijssenThe Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
1130 PhD Award Talk ndash Philipp GreteLarge eddy simulations of compressible magnetohydro-dynamic turbulence
1150 Instrumentation Award Talk ndash Albrecht PoglitschrdquoEs gibt nicht Gutes auszliger man tut esrdquo ndash Reflectionson progress in astronomical Instrumentation
1210 AwardsBruno H Burgel Award Hans-Ulrich KellerRoelin Award Michael WinkhausJugend-forscht AwardMaximilian Marienhagen Toni Ringling Aaron Wild
10 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1230ndash1400 Lunch Break
1400ndash1500 Press Conference ndash Denkschrift Astronomiehttpwwwdenkschrift2017de A+B+C MPS
1400ndash1630 Splinter Meetings
CCAT CCAT-prime new submillimeter scienceopportunities
Auditorium MPS
Computation Computational Astrophysics HS3
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
Non-Thermal Surveying the non-thermal Universe HS4
Plasma Space Plasma Processes in Stellar andPlanetary Environments
D+E+F MPS
Populations Stellar Populations in and around theMilky Way
HS5
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash2000 Mitgliederversammlung derAstronomischen Gesellschaft Auditorium MPS
Gottingen September 18ndash22 2017 11
DETAILED PROGRAM
Wednesday 20 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M Sasaki
0900 Karl GebhardtThe HETDEX Dark Energy Experiment
0930 Bringfried StecklumAccretion outbursts from high-mass young stellar ob-jects
1000 Harold YorkeSOFIA in the Era of JWST and ALMA
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson A Hatzes
1100 Rolf SchlichenmaierSolar magnetoconvection observed with GREGOR
1130 Istvan DekanyClassical pulsators as population tracers a journey tothe far side of the Milky Way
1200 Sebastian KamannA MUSE view on Galactic globular clusters
1230ndash1240 Conference photo HS1
1240ndash1400 Lunch Break
1240ndash1340 AFN Pizza Lunch Meeting SR17
12 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
AGN Active Galactic Nuclei HS4
Computation Computational Astrophysics HS3
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1400ndash1630 Public Outreach Meeting SR17
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
AGN Active Galactic Nuclei HS4
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1700ndash1900 Public Outreach Meeting SR17
1930ndash2200 Conference Dinner Foyer MPS
Music MegaGauss band Max Planck Institute for Solar System Research
Gottingen September 18ndash22 2017 13
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
PREAMBLE
national competition to unravel the mysteries of the Universe The Denkschriftwill be presented to the public in a press conference after the Award ceremonyon Tuesday
Let me close with my special thanks to the scientific organizing committeearound Stefan Dreizler and Sami Solanki and the local organizing team aroundKlaus Reinsch and Sonja Schuh for all the efforts they have put into this event
With the best wishes for a scientifically stimulating meeting
Matthias SteinmetzPresident of the AG
Dear colleagues and friends
Gottingen has been the venue of six meet-ings of the German Astronomical Society(Astronomischen Gesellschaft AG) since1902 A momentous occasion in this seriesof AG meetings in Gottingen was the re-founding of the AG after the Second WorldWar 70 years ago The last of this seriesso far was in 1999 ie still in the last mil-lennium Since then astronomical researchin Gottingen has seen quite some changesThe astrophycisists left the historical build-ing of the University Observatory whereamong others Carl Friedrich Gauszlig and Karl
Image Uni Gottingen
Schwarzschild were directors The Institute for Astrophysics Gottingen (IAG)is now in the new building of the Physics Department the main venue of thisyearrsquos AG meeting The new name of the institute underlines how deeplyastrophysics is embedded in the research and teaching environment in the de-partment of physics The closer connection to colleagues and students is ofsimilar importance as the new infrastructure
Gottingen September 18ndash22 2017 5
PREAMBLE
At the time of the last AG meeting in Gottingen the Max Planck Institutefor Solar System Research (MPS) was still called the Max Planck Institute forAeronomy (MPAe) and was located in the little village of Katlenburg-LindauIt was relocated to Gottingen in 2014 in close vicinity to the IAG The newMPS building will be the venue of the conference dinner as well as of splintermeetings The new building as well as the better connection to scientists andstudents in astrophysics and other departments at the Gottingen Campus isof great mutual benefit A direct consequence was the implementation of athird director position at MPS as joint professor with the IAG as well as a newprofessor position at the IAG
Today both institutes form a research focus in astrophysics ranging from cos-mology stellar and solar physics to planetary science inside and outside of oursolar system MPS and IAG are also leading institutions in developing andbuilding space and ground based instrumentation As examples for a muchlarger variety of activities the IAG has contributed instrumentation for var-ious observatories (eg MUSE MICADO CARMENES HETDEX) whilethe MPS has provided a variety of instruments to a series of ESA and NASAspace missions (ROSETTA DAWN Solar ORBITER) and the balloon borneobservatory SUNRISE
The Institute for Astrophysics and the Max Planck Institute for Solar SystemResearch would like to welcome you to our jointly organized Annual Meeting ofthe German Astronomical Society 2017 The versatile program under the titleldquoThe many Scales of the Universe Galaxies their Suns and their Planetsrdquooffers you an exciting set of plenary talks as well as a rich spectrum of splintermeetings and poster sessions We hope that you will make use of the numerousopportunities for interesting and lively discussions after the talks during thebreaks in the poster sessions and at the conference dinner
Stefan Dreizler(on behalf of the Scientific Organizing Committee)
6 Annual Meeting of the Astronomische Gesellschaft 2017
ORGANIZERS
Scientific Organizing CommitteeStefan Dreizler (Universitat Gottingen chair)
Sami Solanki (MPS Gottingen co-chair)
Conny Aerts (KU Leuven)
Matthias Bartelmann (Universitat Heidelberg)
Barbara Ercolano (LMU Munchen)
Susanne Huttemeister (Universitat Bochum)
Michael Kramer (MPIfR Bonn)
Nathalie Krivova (MPS Gottingen)
Matthias Steinmetz (AIP Potsdam)
Stefanie Walch (Universitat Koln)
Joachim Wambsganszlig (Universitat Heidelberg)
Local Organizing CommitteeKlaus Reinsch (Universitat Gottingen chair) Sonja Schuh (MPS Gottingenco-chair) Regina von Berlepsch (AIP Potsdam) Nicole Boker (Universitat Got-tingen) Ines Dominitzki (MPS Gottingen) Klaus Jager (MPIA Heidelberg)Wolfram Kollatschny (Universitat Gottingen) Daniela Krone (Universitat Got-tingen) Birgit Krummheuer (MPS Gottingen) Andreas Lagg (MPS Gottingen)Hardi Peter (MPS Gottingen) Sibylla Siebert-Rust (MPS Gottingen) ThomasWiegelmann (MPS Gottingen) Klaudia Wolters (Universitat Gottingen)
Local Organizing Committee SupportKinga Albert Matthias Ammler-von-Eiff Gesa Becker Benjamin BischoffAlessandro Cilla Merten Dahlkemper Meike Fischer Fabian Gottgens ElianaAmazo Gomez Rick Hessman Tim-Oliver Husser Hans Huybrighs Erik John-son Felix Mackebrandt David Marshall Sven Martens Mayukh Panja Paul-Louis Poulier Bastian Proxauf Noah Molinski Catharina Rogge Kamal SantSudharshan Saranathan Mira Schmitt Mariangela Viviani Franziska Zeuner
Gottingen September 18ndash22 2017 7
LOGISTICS
Logistics
Wireless Network Access
Wireless network is available in all lecture and seminar rooms of the conferenceIf you do not have access to eduroam you may ask for a guest voucher at theregistration desk to obtain access to the GuestOnCampus network
Guided Tours
Guided tours through the laboratories at the Institute for Astrophysics andat the Max Planck Institute for Solar System Research will be offered duringlunch breaks There will also be opportunities to visit the Physical Cabinetwith a collection of historical instruments next to the main lecture room
The number of participants for all guided tours will be limited Please enscribein the lists provided at the registration desk
Lunch Options
The Dining Hall (Nordmensa) is open for lunch from 1115 to 1415 (Mondayto Thursday) and from 1115 to 1400 on Friday It is located at some 5 minuteswalking distance from the physics building (see map) and includes a bistro andcoffee bar (coffeebar ins grune)
Information about dishes is available underhttpswwwstudentenwerk-goettingendespeiseplanhtmlL=1
There is also a cafeteria (CaPhy) in the basement of the physics building (nextto the main lecture room) where you can buy snacks sandwiches soft drinksetc
It is possible to pay cash in the Nordmensa and in the cafeterias
Besides that you can find fast food options and a Chinese restaurant at theshopping center on the street ldquoAn der Lutterrdquo below the crossing with Robert-Koch-Straszlige in 10 minutes walking distance (see map)
8 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
Detailed Program
This is the detailed program as of September 8thYou will find additional and updated informa-tion on the conference website httpag2017uni-goettingende
You can get there using this QR-Code
Lecture Halls
All plenary talks will be held in the main lecture room (HS1 ndash Horsaal 1)of the faculty of physics (Friedrich-Hund-Platz 1 37077 Gottingen) Splintermeetings will be held in the lecture rooms of the physics building (HS1 HS2HS3 HS4 and HS5) and in the Max Planck Institute for Solar System Research(Justus-von-Liebig-Weg 3 37077 Gottingen) just across the road (A+B+CMPS D+E+F MPS and Auditorium MPS) The locations are shown on themap in this booklet In addition signs in the buildings will guide you
Monday 18 September 2017
0900ndash1800 Arbeitskreis AstronomiegeschichteHistorische Sternwarte Geismarlandstr 11
0900ndash1300 Meeting AG Board (closed session) H MPS
1300ndash1800 RDS Meeting (closed session) Auditorium MPS
1300ndash1600 Young Astrophysicists Meeting A+B+C MPS
1600ndash1800 Astro-Frauen-Netzwerk Get-together A+B+C MPS
1830ndash2030 Welcome Reception Alte Mensa Wilhelms-Platz 3
1830 Welcome AddressesRolf-Georg Kohler (Mayor of the City of Gottingen)Prof Dr Stefan Dreizler (Chair Scientific OrganizingCommittee)
Gottingen September 18ndash22 2017 9
DETAILED PROGRAM
Tuesday 19 September 2017
0900ndash1030 Opening amp Award Ceremonies HS1
Music Joseph Haydn Divertimento B major for wind quintet
0900 Opening and ChairpersonProf Dr Matthias Steinmetz (President of the Astro-nomical Society)
Welcome AddressesProf Dr Ulrike Beisiegel (President of the Georg-August-Universitat Gottingen)Prof Dr Tim Salditt (Dean of the Faculty of Physics)Prof Dr Sami Solanki (Director at the MPI for Solar System Research)
0930 Karl Schwarzschild Lecture ndash Richard WielebinskiCosmic magnetic fields
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Award Ceremonies (continued) HS1
Chairperson M Steinmetz
1100 Ludwig Biermann Award Talk ndash Diederik KruijssenThe Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
1130 PhD Award Talk ndash Philipp GreteLarge eddy simulations of compressible magnetohydro-dynamic turbulence
1150 Instrumentation Award Talk ndash Albrecht PoglitschrdquoEs gibt nicht Gutes auszliger man tut esrdquo ndash Reflectionson progress in astronomical Instrumentation
1210 AwardsBruno H Burgel Award Hans-Ulrich KellerRoelin Award Michael WinkhausJugend-forscht AwardMaximilian Marienhagen Toni Ringling Aaron Wild
10 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1230ndash1400 Lunch Break
1400ndash1500 Press Conference ndash Denkschrift Astronomiehttpwwwdenkschrift2017de A+B+C MPS
1400ndash1630 Splinter Meetings
CCAT CCAT-prime new submillimeter scienceopportunities
Auditorium MPS
Computation Computational Astrophysics HS3
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
Non-Thermal Surveying the non-thermal Universe HS4
Plasma Space Plasma Processes in Stellar andPlanetary Environments
D+E+F MPS
Populations Stellar Populations in and around theMilky Way
HS5
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash2000 Mitgliederversammlung derAstronomischen Gesellschaft Auditorium MPS
Gottingen September 18ndash22 2017 11
DETAILED PROGRAM
Wednesday 20 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M Sasaki
0900 Karl GebhardtThe HETDEX Dark Energy Experiment
0930 Bringfried StecklumAccretion outbursts from high-mass young stellar ob-jects
1000 Harold YorkeSOFIA in the Era of JWST and ALMA
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson A Hatzes
1100 Rolf SchlichenmaierSolar magnetoconvection observed with GREGOR
1130 Istvan DekanyClassical pulsators as population tracers a journey tothe far side of the Milky Way
1200 Sebastian KamannA MUSE view on Galactic globular clusters
1230ndash1240 Conference photo HS1
1240ndash1400 Lunch Break
1240ndash1340 AFN Pizza Lunch Meeting SR17
12 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
AGN Active Galactic Nuclei HS4
Computation Computational Astrophysics HS3
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1400ndash1630 Public Outreach Meeting SR17
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
AGN Active Galactic Nuclei HS4
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1700ndash1900 Public Outreach Meeting SR17
1930ndash2200 Conference Dinner Foyer MPS
Music MegaGauss band Max Planck Institute for Solar System Research
Gottingen September 18ndash22 2017 13
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
PREAMBLE
At the time of the last AG meeting in Gottingen the Max Planck Institutefor Solar System Research (MPS) was still called the Max Planck Institute forAeronomy (MPAe) and was located in the little village of Katlenburg-LindauIt was relocated to Gottingen in 2014 in close vicinity to the IAG The newMPS building will be the venue of the conference dinner as well as of splintermeetings The new building as well as the better connection to scientists andstudents in astrophysics and other departments at the Gottingen Campus isof great mutual benefit A direct consequence was the implementation of athird director position at MPS as joint professor with the IAG as well as a newprofessor position at the IAG
Today both institutes form a research focus in astrophysics ranging from cos-mology stellar and solar physics to planetary science inside and outside of oursolar system MPS and IAG are also leading institutions in developing andbuilding space and ground based instrumentation As examples for a muchlarger variety of activities the IAG has contributed instrumentation for var-ious observatories (eg MUSE MICADO CARMENES HETDEX) whilethe MPS has provided a variety of instruments to a series of ESA and NASAspace missions (ROSETTA DAWN Solar ORBITER) and the balloon borneobservatory SUNRISE
The Institute for Astrophysics and the Max Planck Institute for Solar SystemResearch would like to welcome you to our jointly organized Annual Meeting ofthe German Astronomical Society 2017 The versatile program under the titleldquoThe many Scales of the Universe Galaxies their Suns and their Planetsrdquooffers you an exciting set of plenary talks as well as a rich spectrum of splintermeetings and poster sessions We hope that you will make use of the numerousopportunities for interesting and lively discussions after the talks during thebreaks in the poster sessions and at the conference dinner
Stefan Dreizler(on behalf of the Scientific Organizing Committee)
6 Annual Meeting of the Astronomische Gesellschaft 2017
ORGANIZERS
Scientific Organizing CommitteeStefan Dreizler (Universitat Gottingen chair)
Sami Solanki (MPS Gottingen co-chair)
Conny Aerts (KU Leuven)
Matthias Bartelmann (Universitat Heidelberg)
Barbara Ercolano (LMU Munchen)
Susanne Huttemeister (Universitat Bochum)
Michael Kramer (MPIfR Bonn)
Nathalie Krivova (MPS Gottingen)
Matthias Steinmetz (AIP Potsdam)
Stefanie Walch (Universitat Koln)
Joachim Wambsganszlig (Universitat Heidelberg)
Local Organizing CommitteeKlaus Reinsch (Universitat Gottingen chair) Sonja Schuh (MPS Gottingenco-chair) Regina von Berlepsch (AIP Potsdam) Nicole Boker (Universitat Got-tingen) Ines Dominitzki (MPS Gottingen) Klaus Jager (MPIA Heidelberg)Wolfram Kollatschny (Universitat Gottingen) Daniela Krone (Universitat Got-tingen) Birgit Krummheuer (MPS Gottingen) Andreas Lagg (MPS Gottingen)Hardi Peter (MPS Gottingen) Sibylla Siebert-Rust (MPS Gottingen) ThomasWiegelmann (MPS Gottingen) Klaudia Wolters (Universitat Gottingen)
Local Organizing Committee SupportKinga Albert Matthias Ammler-von-Eiff Gesa Becker Benjamin BischoffAlessandro Cilla Merten Dahlkemper Meike Fischer Fabian Gottgens ElianaAmazo Gomez Rick Hessman Tim-Oliver Husser Hans Huybrighs Erik John-son Felix Mackebrandt David Marshall Sven Martens Mayukh Panja Paul-Louis Poulier Bastian Proxauf Noah Molinski Catharina Rogge Kamal SantSudharshan Saranathan Mira Schmitt Mariangela Viviani Franziska Zeuner
Gottingen September 18ndash22 2017 7
LOGISTICS
Logistics
Wireless Network Access
Wireless network is available in all lecture and seminar rooms of the conferenceIf you do not have access to eduroam you may ask for a guest voucher at theregistration desk to obtain access to the GuestOnCampus network
Guided Tours
Guided tours through the laboratories at the Institute for Astrophysics andat the Max Planck Institute for Solar System Research will be offered duringlunch breaks There will also be opportunities to visit the Physical Cabinetwith a collection of historical instruments next to the main lecture room
The number of participants for all guided tours will be limited Please enscribein the lists provided at the registration desk
Lunch Options
The Dining Hall (Nordmensa) is open for lunch from 1115 to 1415 (Mondayto Thursday) and from 1115 to 1400 on Friday It is located at some 5 minuteswalking distance from the physics building (see map) and includes a bistro andcoffee bar (coffeebar ins grune)
Information about dishes is available underhttpswwwstudentenwerk-goettingendespeiseplanhtmlL=1
There is also a cafeteria (CaPhy) in the basement of the physics building (nextto the main lecture room) where you can buy snacks sandwiches soft drinksetc
It is possible to pay cash in the Nordmensa and in the cafeterias
Besides that you can find fast food options and a Chinese restaurant at theshopping center on the street ldquoAn der Lutterrdquo below the crossing with Robert-Koch-Straszlige in 10 minutes walking distance (see map)
8 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
Detailed Program
This is the detailed program as of September 8thYou will find additional and updated informa-tion on the conference website httpag2017uni-goettingende
You can get there using this QR-Code
Lecture Halls
All plenary talks will be held in the main lecture room (HS1 ndash Horsaal 1)of the faculty of physics (Friedrich-Hund-Platz 1 37077 Gottingen) Splintermeetings will be held in the lecture rooms of the physics building (HS1 HS2HS3 HS4 and HS5) and in the Max Planck Institute for Solar System Research(Justus-von-Liebig-Weg 3 37077 Gottingen) just across the road (A+B+CMPS D+E+F MPS and Auditorium MPS) The locations are shown on themap in this booklet In addition signs in the buildings will guide you
Monday 18 September 2017
0900ndash1800 Arbeitskreis AstronomiegeschichteHistorische Sternwarte Geismarlandstr 11
0900ndash1300 Meeting AG Board (closed session) H MPS
1300ndash1800 RDS Meeting (closed session) Auditorium MPS
1300ndash1600 Young Astrophysicists Meeting A+B+C MPS
1600ndash1800 Astro-Frauen-Netzwerk Get-together A+B+C MPS
1830ndash2030 Welcome Reception Alte Mensa Wilhelms-Platz 3
1830 Welcome AddressesRolf-Georg Kohler (Mayor of the City of Gottingen)Prof Dr Stefan Dreizler (Chair Scientific OrganizingCommittee)
Gottingen September 18ndash22 2017 9
DETAILED PROGRAM
Tuesday 19 September 2017
0900ndash1030 Opening amp Award Ceremonies HS1
Music Joseph Haydn Divertimento B major for wind quintet
0900 Opening and ChairpersonProf Dr Matthias Steinmetz (President of the Astro-nomical Society)
Welcome AddressesProf Dr Ulrike Beisiegel (President of the Georg-August-Universitat Gottingen)Prof Dr Tim Salditt (Dean of the Faculty of Physics)Prof Dr Sami Solanki (Director at the MPI for Solar System Research)
0930 Karl Schwarzschild Lecture ndash Richard WielebinskiCosmic magnetic fields
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Award Ceremonies (continued) HS1
Chairperson M Steinmetz
1100 Ludwig Biermann Award Talk ndash Diederik KruijssenThe Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
1130 PhD Award Talk ndash Philipp GreteLarge eddy simulations of compressible magnetohydro-dynamic turbulence
1150 Instrumentation Award Talk ndash Albrecht PoglitschrdquoEs gibt nicht Gutes auszliger man tut esrdquo ndash Reflectionson progress in astronomical Instrumentation
1210 AwardsBruno H Burgel Award Hans-Ulrich KellerRoelin Award Michael WinkhausJugend-forscht AwardMaximilian Marienhagen Toni Ringling Aaron Wild
10 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1230ndash1400 Lunch Break
1400ndash1500 Press Conference ndash Denkschrift Astronomiehttpwwwdenkschrift2017de A+B+C MPS
1400ndash1630 Splinter Meetings
CCAT CCAT-prime new submillimeter scienceopportunities
Auditorium MPS
Computation Computational Astrophysics HS3
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
Non-Thermal Surveying the non-thermal Universe HS4
Plasma Space Plasma Processes in Stellar andPlanetary Environments
D+E+F MPS
Populations Stellar Populations in and around theMilky Way
HS5
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash2000 Mitgliederversammlung derAstronomischen Gesellschaft Auditorium MPS
Gottingen September 18ndash22 2017 11
DETAILED PROGRAM
Wednesday 20 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M Sasaki
0900 Karl GebhardtThe HETDEX Dark Energy Experiment
0930 Bringfried StecklumAccretion outbursts from high-mass young stellar ob-jects
1000 Harold YorkeSOFIA in the Era of JWST and ALMA
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson A Hatzes
1100 Rolf SchlichenmaierSolar magnetoconvection observed with GREGOR
1130 Istvan DekanyClassical pulsators as population tracers a journey tothe far side of the Milky Way
1200 Sebastian KamannA MUSE view on Galactic globular clusters
1230ndash1240 Conference photo HS1
1240ndash1400 Lunch Break
1240ndash1340 AFN Pizza Lunch Meeting SR17
12 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
AGN Active Galactic Nuclei HS4
Computation Computational Astrophysics HS3
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1400ndash1630 Public Outreach Meeting SR17
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
AGN Active Galactic Nuclei HS4
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1700ndash1900 Public Outreach Meeting SR17
1930ndash2200 Conference Dinner Foyer MPS
Music MegaGauss band Max Planck Institute for Solar System Research
Gottingen September 18ndash22 2017 13
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
ORGANIZERS
Scientific Organizing CommitteeStefan Dreizler (Universitat Gottingen chair)
Sami Solanki (MPS Gottingen co-chair)
Conny Aerts (KU Leuven)
Matthias Bartelmann (Universitat Heidelberg)
Barbara Ercolano (LMU Munchen)
Susanne Huttemeister (Universitat Bochum)
Michael Kramer (MPIfR Bonn)
Nathalie Krivova (MPS Gottingen)
Matthias Steinmetz (AIP Potsdam)
Stefanie Walch (Universitat Koln)
Joachim Wambsganszlig (Universitat Heidelberg)
Local Organizing CommitteeKlaus Reinsch (Universitat Gottingen chair) Sonja Schuh (MPS Gottingenco-chair) Regina von Berlepsch (AIP Potsdam) Nicole Boker (Universitat Got-tingen) Ines Dominitzki (MPS Gottingen) Klaus Jager (MPIA Heidelberg)Wolfram Kollatschny (Universitat Gottingen) Daniela Krone (Universitat Got-tingen) Birgit Krummheuer (MPS Gottingen) Andreas Lagg (MPS Gottingen)Hardi Peter (MPS Gottingen) Sibylla Siebert-Rust (MPS Gottingen) ThomasWiegelmann (MPS Gottingen) Klaudia Wolters (Universitat Gottingen)
Local Organizing Committee SupportKinga Albert Matthias Ammler-von-Eiff Gesa Becker Benjamin BischoffAlessandro Cilla Merten Dahlkemper Meike Fischer Fabian Gottgens ElianaAmazo Gomez Rick Hessman Tim-Oliver Husser Hans Huybrighs Erik John-son Felix Mackebrandt David Marshall Sven Martens Mayukh Panja Paul-Louis Poulier Bastian Proxauf Noah Molinski Catharina Rogge Kamal SantSudharshan Saranathan Mira Schmitt Mariangela Viviani Franziska Zeuner
Gottingen September 18ndash22 2017 7
LOGISTICS
Logistics
Wireless Network Access
Wireless network is available in all lecture and seminar rooms of the conferenceIf you do not have access to eduroam you may ask for a guest voucher at theregistration desk to obtain access to the GuestOnCampus network
Guided Tours
Guided tours through the laboratories at the Institute for Astrophysics andat the Max Planck Institute for Solar System Research will be offered duringlunch breaks There will also be opportunities to visit the Physical Cabinetwith a collection of historical instruments next to the main lecture room
The number of participants for all guided tours will be limited Please enscribein the lists provided at the registration desk
Lunch Options
The Dining Hall (Nordmensa) is open for lunch from 1115 to 1415 (Mondayto Thursday) and from 1115 to 1400 on Friday It is located at some 5 minuteswalking distance from the physics building (see map) and includes a bistro andcoffee bar (coffeebar ins grune)
Information about dishes is available underhttpswwwstudentenwerk-goettingendespeiseplanhtmlL=1
There is also a cafeteria (CaPhy) in the basement of the physics building (nextto the main lecture room) where you can buy snacks sandwiches soft drinksetc
It is possible to pay cash in the Nordmensa and in the cafeterias
Besides that you can find fast food options and a Chinese restaurant at theshopping center on the street ldquoAn der Lutterrdquo below the crossing with Robert-Koch-Straszlige in 10 minutes walking distance (see map)
8 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
Detailed Program
This is the detailed program as of September 8thYou will find additional and updated informa-tion on the conference website httpag2017uni-goettingende
You can get there using this QR-Code
Lecture Halls
All plenary talks will be held in the main lecture room (HS1 ndash Horsaal 1)of the faculty of physics (Friedrich-Hund-Platz 1 37077 Gottingen) Splintermeetings will be held in the lecture rooms of the physics building (HS1 HS2HS3 HS4 and HS5) and in the Max Planck Institute for Solar System Research(Justus-von-Liebig-Weg 3 37077 Gottingen) just across the road (A+B+CMPS D+E+F MPS and Auditorium MPS) The locations are shown on themap in this booklet In addition signs in the buildings will guide you
Monday 18 September 2017
0900ndash1800 Arbeitskreis AstronomiegeschichteHistorische Sternwarte Geismarlandstr 11
0900ndash1300 Meeting AG Board (closed session) H MPS
1300ndash1800 RDS Meeting (closed session) Auditorium MPS
1300ndash1600 Young Astrophysicists Meeting A+B+C MPS
1600ndash1800 Astro-Frauen-Netzwerk Get-together A+B+C MPS
1830ndash2030 Welcome Reception Alte Mensa Wilhelms-Platz 3
1830 Welcome AddressesRolf-Georg Kohler (Mayor of the City of Gottingen)Prof Dr Stefan Dreizler (Chair Scientific OrganizingCommittee)
Gottingen September 18ndash22 2017 9
DETAILED PROGRAM
Tuesday 19 September 2017
0900ndash1030 Opening amp Award Ceremonies HS1
Music Joseph Haydn Divertimento B major for wind quintet
0900 Opening and ChairpersonProf Dr Matthias Steinmetz (President of the Astro-nomical Society)
Welcome AddressesProf Dr Ulrike Beisiegel (President of the Georg-August-Universitat Gottingen)Prof Dr Tim Salditt (Dean of the Faculty of Physics)Prof Dr Sami Solanki (Director at the MPI for Solar System Research)
0930 Karl Schwarzschild Lecture ndash Richard WielebinskiCosmic magnetic fields
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Award Ceremonies (continued) HS1
Chairperson M Steinmetz
1100 Ludwig Biermann Award Talk ndash Diederik KruijssenThe Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
1130 PhD Award Talk ndash Philipp GreteLarge eddy simulations of compressible magnetohydro-dynamic turbulence
1150 Instrumentation Award Talk ndash Albrecht PoglitschrdquoEs gibt nicht Gutes auszliger man tut esrdquo ndash Reflectionson progress in astronomical Instrumentation
1210 AwardsBruno H Burgel Award Hans-Ulrich KellerRoelin Award Michael WinkhausJugend-forscht AwardMaximilian Marienhagen Toni Ringling Aaron Wild
10 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1230ndash1400 Lunch Break
1400ndash1500 Press Conference ndash Denkschrift Astronomiehttpwwwdenkschrift2017de A+B+C MPS
1400ndash1630 Splinter Meetings
CCAT CCAT-prime new submillimeter scienceopportunities
Auditorium MPS
Computation Computational Astrophysics HS3
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
Non-Thermal Surveying the non-thermal Universe HS4
Plasma Space Plasma Processes in Stellar andPlanetary Environments
D+E+F MPS
Populations Stellar Populations in and around theMilky Way
HS5
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash2000 Mitgliederversammlung derAstronomischen Gesellschaft Auditorium MPS
Gottingen September 18ndash22 2017 11
DETAILED PROGRAM
Wednesday 20 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M Sasaki
0900 Karl GebhardtThe HETDEX Dark Energy Experiment
0930 Bringfried StecklumAccretion outbursts from high-mass young stellar ob-jects
1000 Harold YorkeSOFIA in the Era of JWST and ALMA
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson A Hatzes
1100 Rolf SchlichenmaierSolar magnetoconvection observed with GREGOR
1130 Istvan DekanyClassical pulsators as population tracers a journey tothe far side of the Milky Way
1200 Sebastian KamannA MUSE view on Galactic globular clusters
1230ndash1240 Conference photo HS1
1240ndash1400 Lunch Break
1240ndash1340 AFN Pizza Lunch Meeting SR17
12 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
AGN Active Galactic Nuclei HS4
Computation Computational Astrophysics HS3
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1400ndash1630 Public Outreach Meeting SR17
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
AGN Active Galactic Nuclei HS4
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1700ndash1900 Public Outreach Meeting SR17
1930ndash2200 Conference Dinner Foyer MPS
Music MegaGauss band Max Planck Institute for Solar System Research
Gottingen September 18ndash22 2017 13
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
LOGISTICS
Logistics
Wireless Network Access
Wireless network is available in all lecture and seminar rooms of the conferenceIf you do not have access to eduroam you may ask for a guest voucher at theregistration desk to obtain access to the GuestOnCampus network
Guided Tours
Guided tours through the laboratories at the Institute for Astrophysics andat the Max Planck Institute for Solar System Research will be offered duringlunch breaks There will also be opportunities to visit the Physical Cabinetwith a collection of historical instruments next to the main lecture room
The number of participants for all guided tours will be limited Please enscribein the lists provided at the registration desk
Lunch Options
The Dining Hall (Nordmensa) is open for lunch from 1115 to 1415 (Mondayto Thursday) and from 1115 to 1400 on Friday It is located at some 5 minuteswalking distance from the physics building (see map) and includes a bistro andcoffee bar (coffeebar ins grune)
Information about dishes is available underhttpswwwstudentenwerk-goettingendespeiseplanhtmlL=1
There is also a cafeteria (CaPhy) in the basement of the physics building (nextto the main lecture room) where you can buy snacks sandwiches soft drinksetc
It is possible to pay cash in the Nordmensa and in the cafeterias
Besides that you can find fast food options and a Chinese restaurant at theshopping center on the street ldquoAn der Lutterrdquo below the crossing with Robert-Koch-Straszlige in 10 minutes walking distance (see map)
8 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
Detailed Program
This is the detailed program as of September 8thYou will find additional and updated informa-tion on the conference website httpag2017uni-goettingende
You can get there using this QR-Code
Lecture Halls
All plenary talks will be held in the main lecture room (HS1 ndash Horsaal 1)of the faculty of physics (Friedrich-Hund-Platz 1 37077 Gottingen) Splintermeetings will be held in the lecture rooms of the physics building (HS1 HS2HS3 HS4 and HS5) and in the Max Planck Institute for Solar System Research(Justus-von-Liebig-Weg 3 37077 Gottingen) just across the road (A+B+CMPS D+E+F MPS and Auditorium MPS) The locations are shown on themap in this booklet In addition signs in the buildings will guide you
Monday 18 September 2017
0900ndash1800 Arbeitskreis AstronomiegeschichteHistorische Sternwarte Geismarlandstr 11
0900ndash1300 Meeting AG Board (closed session) H MPS
1300ndash1800 RDS Meeting (closed session) Auditorium MPS
1300ndash1600 Young Astrophysicists Meeting A+B+C MPS
1600ndash1800 Astro-Frauen-Netzwerk Get-together A+B+C MPS
1830ndash2030 Welcome Reception Alte Mensa Wilhelms-Platz 3
1830 Welcome AddressesRolf-Georg Kohler (Mayor of the City of Gottingen)Prof Dr Stefan Dreizler (Chair Scientific OrganizingCommittee)
Gottingen September 18ndash22 2017 9
DETAILED PROGRAM
Tuesday 19 September 2017
0900ndash1030 Opening amp Award Ceremonies HS1
Music Joseph Haydn Divertimento B major for wind quintet
0900 Opening and ChairpersonProf Dr Matthias Steinmetz (President of the Astro-nomical Society)
Welcome AddressesProf Dr Ulrike Beisiegel (President of the Georg-August-Universitat Gottingen)Prof Dr Tim Salditt (Dean of the Faculty of Physics)Prof Dr Sami Solanki (Director at the MPI for Solar System Research)
0930 Karl Schwarzschild Lecture ndash Richard WielebinskiCosmic magnetic fields
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Award Ceremonies (continued) HS1
Chairperson M Steinmetz
1100 Ludwig Biermann Award Talk ndash Diederik KruijssenThe Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
1130 PhD Award Talk ndash Philipp GreteLarge eddy simulations of compressible magnetohydro-dynamic turbulence
1150 Instrumentation Award Talk ndash Albrecht PoglitschrdquoEs gibt nicht Gutes auszliger man tut esrdquo ndash Reflectionson progress in astronomical Instrumentation
1210 AwardsBruno H Burgel Award Hans-Ulrich KellerRoelin Award Michael WinkhausJugend-forscht AwardMaximilian Marienhagen Toni Ringling Aaron Wild
10 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1230ndash1400 Lunch Break
1400ndash1500 Press Conference ndash Denkschrift Astronomiehttpwwwdenkschrift2017de A+B+C MPS
1400ndash1630 Splinter Meetings
CCAT CCAT-prime new submillimeter scienceopportunities
Auditorium MPS
Computation Computational Astrophysics HS3
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
Non-Thermal Surveying the non-thermal Universe HS4
Plasma Space Plasma Processes in Stellar andPlanetary Environments
D+E+F MPS
Populations Stellar Populations in and around theMilky Way
HS5
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash2000 Mitgliederversammlung derAstronomischen Gesellschaft Auditorium MPS
Gottingen September 18ndash22 2017 11
DETAILED PROGRAM
Wednesday 20 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M Sasaki
0900 Karl GebhardtThe HETDEX Dark Energy Experiment
0930 Bringfried StecklumAccretion outbursts from high-mass young stellar ob-jects
1000 Harold YorkeSOFIA in the Era of JWST and ALMA
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson A Hatzes
1100 Rolf SchlichenmaierSolar magnetoconvection observed with GREGOR
1130 Istvan DekanyClassical pulsators as population tracers a journey tothe far side of the Milky Way
1200 Sebastian KamannA MUSE view on Galactic globular clusters
1230ndash1240 Conference photo HS1
1240ndash1400 Lunch Break
1240ndash1340 AFN Pizza Lunch Meeting SR17
12 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
AGN Active Galactic Nuclei HS4
Computation Computational Astrophysics HS3
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1400ndash1630 Public Outreach Meeting SR17
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
AGN Active Galactic Nuclei HS4
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1700ndash1900 Public Outreach Meeting SR17
1930ndash2200 Conference Dinner Foyer MPS
Music MegaGauss band Max Planck Institute for Solar System Research
Gottingen September 18ndash22 2017 13
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
DETAILED PROGRAM
Detailed Program
This is the detailed program as of September 8thYou will find additional and updated informa-tion on the conference website httpag2017uni-goettingende
You can get there using this QR-Code
Lecture Halls
All plenary talks will be held in the main lecture room (HS1 ndash Horsaal 1)of the faculty of physics (Friedrich-Hund-Platz 1 37077 Gottingen) Splintermeetings will be held in the lecture rooms of the physics building (HS1 HS2HS3 HS4 and HS5) and in the Max Planck Institute for Solar System Research(Justus-von-Liebig-Weg 3 37077 Gottingen) just across the road (A+B+CMPS D+E+F MPS and Auditorium MPS) The locations are shown on themap in this booklet In addition signs in the buildings will guide you
Monday 18 September 2017
0900ndash1800 Arbeitskreis AstronomiegeschichteHistorische Sternwarte Geismarlandstr 11
0900ndash1300 Meeting AG Board (closed session) H MPS
1300ndash1800 RDS Meeting (closed session) Auditorium MPS
1300ndash1600 Young Astrophysicists Meeting A+B+C MPS
1600ndash1800 Astro-Frauen-Netzwerk Get-together A+B+C MPS
1830ndash2030 Welcome Reception Alte Mensa Wilhelms-Platz 3
1830 Welcome AddressesRolf-Georg Kohler (Mayor of the City of Gottingen)Prof Dr Stefan Dreizler (Chair Scientific OrganizingCommittee)
Gottingen September 18ndash22 2017 9
DETAILED PROGRAM
Tuesday 19 September 2017
0900ndash1030 Opening amp Award Ceremonies HS1
Music Joseph Haydn Divertimento B major for wind quintet
0900 Opening and ChairpersonProf Dr Matthias Steinmetz (President of the Astro-nomical Society)
Welcome AddressesProf Dr Ulrike Beisiegel (President of the Georg-August-Universitat Gottingen)Prof Dr Tim Salditt (Dean of the Faculty of Physics)Prof Dr Sami Solanki (Director at the MPI for Solar System Research)
0930 Karl Schwarzschild Lecture ndash Richard WielebinskiCosmic magnetic fields
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Award Ceremonies (continued) HS1
Chairperson M Steinmetz
1100 Ludwig Biermann Award Talk ndash Diederik KruijssenThe Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
1130 PhD Award Talk ndash Philipp GreteLarge eddy simulations of compressible magnetohydro-dynamic turbulence
1150 Instrumentation Award Talk ndash Albrecht PoglitschrdquoEs gibt nicht Gutes auszliger man tut esrdquo ndash Reflectionson progress in astronomical Instrumentation
1210 AwardsBruno H Burgel Award Hans-Ulrich KellerRoelin Award Michael WinkhausJugend-forscht AwardMaximilian Marienhagen Toni Ringling Aaron Wild
10 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1230ndash1400 Lunch Break
1400ndash1500 Press Conference ndash Denkschrift Astronomiehttpwwwdenkschrift2017de A+B+C MPS
1400ndash1630 Splinter Meetings
CCAT CCAT-prime new submillimeter scienceopportunities
Auditorium MPS
Computation Computational Astrophysics HS3
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
Non-Thermal Surveying the non-thermal Universe HS4
Plasma Space Plasma Processes in Stellar andPlanetary Environments
D+E+F MPS
Populations Stellar Populations in and around theMilky Way
HS5
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash2000 Mitgliederversammlung derAstronomischen Gesellschaft Auditorium MPS
Gottingen September 18ndash22 2017 11
DETAILED PROGRAM
Wednesday 20 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M Sasaki
0900 Karl GebhardtThe HETDEX Dark Energy Experiment
0930 Bringfried StecklumAccretion outbursts from high-mass young stellar ob-jects
1000 Harold YorkeSOFIA in the Era of JWST and ALMA
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson A Hatzes
1100 Rolf SchlichenmaierSolar magnetoconvection observed with GREGOR
1130 Istvan DekanyClassical pulsators as population tracers a journey tothe far side of the Milky Way
1200 Sebastian KamannA MUSE view on Galactic globular clusters
1230ndash1240 Conference photo HS1
1240ndash1400 Lunch Break
1240ndash1340 AFN Pizza Lunch Meeting SR17
12 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
AGN Active Galactic Nuclei HS4
Computation Computational Astrophysics HS3
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1400ndash1630 Public Outreach Meeting SR17
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
AGN Active Galactic Nuclei HS4
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1700ndash1900 Public Outreach Meeting SR17
1930ndash2200 Conference Dinner Foyer MPS
Music MegaGauss band Max Planck Institute for Solar System Research
Gottingen September 18ndash22 2017 13
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
DETAILED PROGRAM
Tuesday 19 September 2017
0900ndash1030 Opening amp Award Ceremonies HS1
Music Joseph Haydn Divertimento B major for wind quintet
0900 Opening and ChairpersonProf Dr Matthias Steinmetz (President of the Astro-nomical Society)
Welcome AddressesProf Dr Ulrike Beisiegel (President of the Georg-August-Universitat Gottingen)Prof Dr Tim Salditt (Dean of the Faculty of Physics)Prof Dr Sami Solanki (Director at the MPI for Solar System Research)
0930 Karl Schwarzschild Lecture ndash Richard WielebinskiCosmic magnetic fields
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Award Ceremonies (continued) HS1
Chairperson M Steinmetz
1100 Ludwig Biermann Award Talk ndash Diederik KruijssenThe Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
1130 PhD Award Talk ndash Philipp GreteLarge eddy simulations of compressible magnetohydro-dynamic turbulence
1150 Instrumentation Award Talk ndash Albrecht PoglitschrdquoEs gibt nicht Gutes auszliger man tut esrdquo ndash Reflectionson progress in astronomical Instrumentation
1210 AwardsBruno H Burgel Award Hans-Ulrich KellerRoelin Award Michael WinkhausJugend-forscht AwardMaximilian Marienhagen Toni Ringling Aaron Wild
10 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1230ndash1400 Lunch Break
1400ndash1500 Press Conference ndash Denkschrift Astronomiehttpwwwdenkschrift2017de A+B+C MPS
1400ndash1630 Splinter Meetings
CCAT CCAT-prime new submillimeter scienceopportunities
Auditorium MPS
Computation Computational Astrophysics HS3
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
Non-Thermal Surveying the non-thermal Universe HS4
Plasma Space Plasma Processes in Stellar andPlanetary Environments
D+E+F MPS
Populations Stellar Populations in and around theMilky Way
HS5
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash2000 Mitgliederversammlung derAstronomischen Gesellschaft Auditorium MPS
Gottingen September 18ndash22 2017 11
DETAILED PROGRAM
Wednesday 20 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M Sasaki
0900 Karl GebhardtThe HETDEX Dark Energy Experiment
0930 Bringfried StecklumAccretion outbursts from high-mass young stellar ob-jects
1000 Harold YorkeSOFIA in the Era of JWST and ALMA
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson A Hatzes
1100 Rolf SchlichenmaierSolar magnetoconvection observed with GREGOR
1130 Istvan DekanyClassical pulsators as population tracers a journey tothe far side of the Milky Way
1200 Sebastian KamannA MUSE view on Galactic globular clusters
1230ndash1240 Conference photo HS1
1240ndash1400 Lunch Break
1240ndash1340 AFN Pizza Lunch Meeting SR17
12 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
AGN Active Galactic Nuclei HS4
Computation Computational Astrophysics HS3
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1400ndash1630 Public Outreach Meeting SR17
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
AGN Active Galactic Nuclei HS4
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1700ndash1900 Public Outreach Meeting SR17
1930ndash2200 Conference Dinner Foyer MPS
Music MegaGauss band Max Planck Institute for Solar System Research
Gottingen September 18ndash22 2017 13
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
DETAILED PROGRAM
1230ndash1400 Lunch Break
1400ndash1500 Press Conference ndash Denkschrift Astronomiehttpwwwdenkschrift2017de A+B+C MPS
1400ndash1630 Splinter Meetings
CCAT CCAT-prime new submillimeter scienceopportunities
Auditorium MPS
Computation Computational Astrophysics HS3
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
Non-Thermal Surveying the non-thermal Universe HS4
Plasma Space Plasma Processes in Stellar andPlanetary Environments
D+E+F MPS
Populations Stellar Populations in and around theMilky Way
HS5
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash2000 Mitgliederversammlung derAstronomischen Gesellschaft Auditorium MPS
Gottingen September 18ndash22 2017 11
DETAILED PROGRAM
Wednesday 20 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M Sasaki
0900 Karl GebhardtThe HETDEX Dark Energy Experiment
0930 Bringfried StecklumAccretion outbursts from high-mass young stellar ob-jects
1000 Harold YorkeSOFIA in the Era of JWST and ALMA
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson A Hatzes
1100 Rolf SchlichenmaierSolar magnetoconvection observed with GREGOR
1130 Istvan DekanyClassical pulsators as population tracers a journey tothe far side of the Milky Way
1200 Sebastian KamannA MUSE view on Galactic globular clusters
1230ndash1240 Conference photo HS1
1240ndash1400 Lunch Break
1240ndash1340 AFN Pizza Lunch Meeting SR17
12 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
AGN Active Galactic Nuclei HS4
Computation Computational Astrophysics HS3
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1400ndash1630 Public Outreach Meeting SR17
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
AGN Active Galactic Nuclei HS4
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1700ndash1900 Public Outreach Meeting SR17
1930ndash2200 Conference Dinner Foyer MPS
Music MegaGauss band Max Planck Institute for Solar System Research
Gottingen September 18ndash22 2017 13
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
DETAILED PROGRAM
Wednesday 20 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M Sasaki
0900 Karl GebhardtThe HETDEX Dark Energy Experiment
0930 Bringfried StecklumAccretion outbursts from high-mass young stellar ob-jects
1000 Harold YorkeSOFIA in the Era of JWST and ALMA
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson A Hatzes
1100 Rolf SchlichenmaierSolar magnetoconvection observed with GREGOR
1130 Istvan DekanyClassical pulsators as population tracers a journey tothe far side of the Milky Way
1200 Sebastian KamannA MUSE view on Galactic globular clusters
1230ndash1240 Conference photo HS1
1240ndash1400 Lunch Break
1240ndash1340 AFN Pizza Lunch Meeting SR17
12 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
AGN Active Galactic Nuclei HS4
Computation Computational Astrophysics HS3
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1400ndash1630 Public Outreach Meeting SR17
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
AGN Active Galactic Nuclei HS4
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1700ndash1900 Public Outreach Meeting SR17
1930ndash2200 Conference Dinner Foyer MPS
Music MegaGauss band Max Planck Institute for Solar System Research
Gottingen September 18ndash22 2017 13
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
AGN Active Galactic Nuclei HS4
Computation Computational Astrophysics HS3
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1400ndash1630 Public Outreach Meeting SR17
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
AGN Active Galactic Nuclei HS4
Euclid The Euclid space mission HS2
Exoplanets Exoplanets HS1
HiRes High-Resolution Solar Imaging Spec-troscopy and Polarimetry ndash Recent De-velopments in Science and Instrumenta-tion
Auditorium MPS
Populations Stellar Populations in and around theMilky Way
HS5
1700ndash1900 Public Outreach Meeting SR17
1930ndash2200 Conference Dinner Foyer MPS
Music MegaGauss band Max Planck Institute for Solar System Research
Gottingen September 18ndash22 2017 13
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
DETAILED PROGRAM
Thursday 21 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson M-R Cioni
0900 David SingA Panchromatic Comparative View of Exoplanet At-mospheres
0930 Frank BertoldiCCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
1000 Manami SasakiThe hot interstellar medium
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson R Bender
1100 Sandra JeffersMagnetic stars and their elusive planets
1130 Joris VerbiestProbing the Ionised ISM with LOFAR Pulsar Obser-vations
1200 Oliver PfuhlFirst Science Results of the GRAVITY interferometer
1230ndash1400 Lunch Break
14 Annual Meeting of the Astronomische Gesellschaft 2017
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
DETAILED PROGRAM
1400ndash1630 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
E-Science E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
HS2
HotStars Hot Stars and Binary Evolution HS3
1630ndash1700 Coffee Break amp Poster Session Foyer Physics
1700ndash1900 Splinter Meetings
Activity Solar and stellar activity and variability Auditorium MPS
Education Astronomy and Education HS5
eROSITA eROSITA is Coming Opportunities toStudy Cosmology and Large Scale Struc-ture with X-ray Selected Clusters andAGN
HS4
HotStars Hot Stars and Binary Evolution HS3
1930ndash2100 Public Talk ZHG009
1930 Michael KramerWundervolles mysterioses Universumndash eine (Zeit-)Reise
Gottingen September 18ndash22 2017 15
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
DETAILED PROGRAM
Friday 22 September 2017
0900ndash1030 Plenary Talks HS1
Chairperson S Schuh
0900 Benedetta CiardiCosmic reionization and 21 cm observations
0930 Thomas KupferThe systematic search for gravitational wave sourcesusing synoptic surveys
1000 Annalisa PillepichIllustrisTNG the new frontier to understand the co-evolution of dark-matter and galaxies with cosmologi-cal simulations of structure formation
1030ndash1100 Coffee Break amp Poster Session Foyer Physics
1100ndash1230 Plenary Talks HS1
Chairperson J Wambsganszlig
1100 Matthias RempelRealistic MHD simulations of the solar atmosphere
1130 Maarit KapylaModellerrsquos view to solar and stellar dynamos perspec-tives and challenges
1200 Mathieu OssendrijverTracking Jupiter with a Trapezoid Geometrical Meth-ods in Ancient Babylonian Astronomy
1230ndash1240 Closing
1240ndash1400 Lunch Break
1400ndash1830 Training of Teachers (Lehrerfortbildung) SR17
16 Annual Meeting of the Astronomische Gesellschaft 2017
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
Karl-Schwarzschild Lecture
Cosmic magnetic fields
R Wielebinski1
1Max-Planck-Institut fur Radioastronomie Bonn
Magnetic fields are omnipresent in the Universe We know of records by theChinese or the Greeks in which magnetic effects were discussed Certainly thenavigation of ships in the middle ages depended on the use of the compass Thefirst experiments with magnets were described by Gilbert in 1600 JohannesKeppler speculated on the magnetic effect that was forcing the movement ofthe planets This suggestion was negated by Isaac Newton who developedthe gravitational theory Finally the electromagnetic theory was developedby James Clerk Maxwell that described the action of electric current andmagnetic field Practical devices as the dynamo or electric motor came fromthis theory
Peter Zeeman made measurement of magnetic field at a distance by ob-serving the splitting of line emission in a magnetic field Very soon after theZeeman Effect was postulated the first measurements of magnetic fields weremade by Hale in the Sun in 1908 The discovery of cosmic radio waves byKarl Jansky in 1932 added another method of measuring magnetic fields thecosmic radio waves were due to a non-thermal emission process the actionof relativistic particles in magnetic fields Since this synchrotron emission ispolarized the study of the polarization of the cosmic radio waves allows thedetermination of magnetic fields
I have become involved in studies of polarization of Galactic radio wavesduring my PhD studies in Cambridge 1960-1963 The first radio detections ofmagnetic field in a cosmic object the Crab nebula were made in 1957 In thesummer of 1962 the first unambiguous detection of the polarization of Galacticradio waves and hence of magnetic fields in the Milky Way were added Thewhole year 1962 may be termed a magnetic year Polarization was detected inradio galaxies and in supernova remnants In 1968 pulsars were discoveredand showed unusual polarization properties The elusive radio Zeeman Effectwas finally detected in 1968 using the HI line emission in selected Galacticregions The studies of magnetic fields have started in 1962 and go on to thepresent day The 100m radio telescope in Effelsberg played a significant rolein this research field
PLENARY TALK Tuesday 19 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 17
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
Ludwig-Biermann Award Talk
The Physics Driving the Molecular Cloud Lifecycleduring Galaxy Formation and Evolution
J M Diederik Kruijssen
Zentrum fur Astronomie der Universitat Heidelberg AstronomischesRechen-Institut Monchhofstraszlige 12-14 69120 Heidelberg Germany
The cloud-scale physics of star formation and feedback represent the mainuncertainty in galaxy formation and evolution studies In recent years it hasbecome clear that the lsquostar formation relationrsquo between the gas mass (surfacedensity) and the star formation rate (surface density) depends strongly on thespatial scale We have shown that this multi-scale nature of the star forma-tion relation is a direct probe of the cloud-scale physics of star formation andfeedback By quantifying the details of this scale dependence we can directlymeasure fundamental quantities such as molecular cloud lifetimes star for-mation efficiencies feedback timescales feedback outflow velocities feedbackcoupling efficiencies and coherence length scales While these quantities werepreviously only accessible in the Local Group it is now possible to measurethem across a representative part of the galaxy population from the nearbyUniverse out to high redshift (z gt 2) I will present the first results of the sys-tematic application of this method showing that the molecular cloud lifecycleexhibits a strong dependence on the galactic environment Understanding thisenvironmental dependence provides a promising avenue for constraining thephysics of star formation and feedback during galaxy formation and evolution
PLENARY TALK Tuesday 19 September 2017 1100 h HS1
18 Annual Meeting of the Astronomische Gesellschaft 2017
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
PhD Prize Talk
Large eddy simulations of compressiblemagnetohydrodynamic turbulence
P Grete1
1Michigan State University Physics amp Astronomy East Lansing MI United States
Compressible magnetohydrodynamic (MHD) turbulence is thought to play animportant role in many astrophysical processes In absence of detailed three-dimensional observations simulations can partially fill the observational gap inorder to help to understand these processes Unfortunately direct simulationswith realistic parameters are often not feasible Consequently large eddysimulations (LES) have emerged as a viable alternative In LES the overallcomplexity is reduced by simulating only large and intermediate scales directlyThe smallest scales usually referred to as subgrid-scales (SGS) are introducedto the simulation by means of an SGS model
In this talk I will present a new nonlinear MHD SGS model that explicitlytakes compressibility effects into account The model includes closures for allSGS terms in MHD the turbulent Reynolds and Maxwell stresses and theturbulent electromotive force (EMF) The model is systematically validatedboth in a priori and a posteriori tests and compared to traditional modelssuch as eddy-viscosity and scale-similarity type models
In the a priori tests we use high-resolution reference data of stationaryhomogeneous isotropic MHD turbulence ranging from the subsonic (Ms = 02)the supersonic (Ms = 20) regime We compare exact SGS quantities againstpredictions by the closures We find that the new nonlinear model outperformsthe traditional ones in all tests conducted including the representation of theenergy flux along the turbulent cascade
In the a posteriori tests we perform LES of decaying supersonic MHDturbulence with all models and evaluate their performance in comparison tosimulations without a model (and at higher resolution) We find that themodels need to be calculated on a scale larger than the grid scale eg by anexplicit filter to have an influence on the dynamics at all Furthermore weshow that only the proposed nonlinear closure improves higher-order statisticssuch as distributions of vorticity and current density or structure functions
PLENARY TALK Tuesday 19 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 19
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
Instrumentation Prize Talk
ldquoEs gibt nicht Gutes auszliger man tut esrdquo - Reflections onprogress in astronomical Instrumentation
A Poglitsch1
1Max-Planck-Institut fur extraterrestrische Physik Garching
Progress in observational astronomy is critically depending on progress in in-strumentation and observing techniques I will share some thoughts (andquestions) on how the community could createmaintain conditions which fa-cilitate such developments
PLENARY TALK Tuesday 19 September 2017 1150 h HS1
20 Annual Meeting of the Astronomische Gesellschaft 2017
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
Review
The HETDEX Dark Energy Experiment
K Gebhardt
University of Texas Austin United States
No abstract available
PLENARY TALK Wednesday 20 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 21
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
Gottingen September 18ndash22 2017 81
Coffee
Registration
GAVO
ALMA
Springer
Coffee
Pos-ter
Pos-ter
Pos-ter
HS5
HS1
HS2
HS4
HS3
AG
Main entrance
Faculty ofPhysics
CafeteriaCaPhy
to MPS building (1 min)and Nordmensa (5 min)
A+B+C MPSD+E+F MPSAuditorium MPS
Elevator amp stair cases to
SR17
via 4th floor (Astrophysics)
Highlight
Accretion outbursts from high-mass young stellar objects
B Stecklum1 A Caratti o Garatti2 R Garcia Lopez2 J Eisloffel1T PRay2 A Sanna3 R Cesaroni4 C M Walmsleyd24 R D Oudmaijer5 W Jde Wit6 L Moscadelli4 J Greiner7 A Krabbe8 C Fischer8 R Klein9 and
J M Ibanez10
1Thuringer Landessternwarte Tautenburg2Dublin Institute for Advanced Studies
3Max-Planck Institut fur Radioastronomie Bonn4INAF - Osservatorio Astrofisico di Arcetri
5School of Physics and Astronomy University of Leeds6ESO Santiago de Chile
7Max-Planck Institut fur Extraterrestrische Physik Garching8Deutsches SOFIA Institut Stuttgart
9NASA Ames Research Center Moffett Field10Instituto de Astrofısica de Andalucıa Granada
The question whether high-mass stars form like their low-mass siblings hasbeen debated for quite some time Two pathways are considered to producesuch stars - disk-mediated accretion and (proto-)stellar mergers During recentyears evidence for circumstellar disks around high-mass young stellar objects(HMYSOs) mounted Since disk instabilities of low-intermediate-mass YSOscause episodic accretion outbursts similar events are expected for HMYSOstoo In 2015 we discovered the first burst of this kind from S255IR-NIRS3 asim20M HMYSO which was signaled by flaring of its Class II 67 GHz masersIncidentally another burst of a HMYSO was detected by submmmm obser-vations at about the same time We will summarize the observational findingsof these discoveries and their implications for our understanding of massivestar formation the physics and evolution of circumstellar disks as well as theconnection between accretion and ejection of matter
PLENARY TALK Wednesday 20 September 2017 0930 h HS1
22 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
SOFIA in the Era of JWST and ALMA
Harold W Yorke
SOFIA Science Center NASA Ames Research Center MS 232-12 Moffett FieldCA USA 94035
The Stratospheric Observatory For Infrared Astronomy (SOFIA) combines aHubble-sized telescope with a modified 747SP aircraft At an altitude of up to45000 feet SOFIA can observe astrophysical phenomena above over 99 ofthe atmospherersquos water vapor This feature allows access to frequency rangesin the Terahertz regime and mid-infrared wavelengths inaccessible from theground The fact that SOFIA generally returns to its home base after ev-ery flight allows upgrades and repairs to its instrumentation not possible forspace missions As SOFIA has evolved from a development project into a fullyfunctional observatory important advances have been made in several areasof topical astrophysical and solar system research star formation stellar evo-lution astrochemistry the structure and evolution of the interstellar mediumin our Galaxy and external galaxies astrophysical processes near supermas-sive black holes planetary atmospheres and moons and small bodies in thesolar system science In this talk rather than giving a general overview ofwhat SOFIA has accomplished in these fields I will focus on the role and im-portance of SOFIA in providing unique contributions for understanding thesephenomena Particular emphasis will be placed on current and future capabil-ities in high resolution spectroscopy in the wavelength range 28 ndash 320 micron(095 ndash 107 THz) thus bridging the gap between JWST and ALMA
PLENARY TALK Wednesday 20 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 23
Review
Solar magnetoconvection observed with GREGOR
Rolf Schlichenmaier
Kiepenheuer Institut fur Sonnenphysik Freiburg
The Sun provides a unique laboratory to study cosmic magnetic fields Withan aperture of 15 m the new solar telescope GREGOR operating in Tenerife isthe largest of its kind in Europe It provides an unprecedented combination ofspatial and spectral resolution and polarimetric sensitivity to investigate thesmall-scale magnetic fields on the Sun in the photosphere and chromosphereThe nature of the solar atmosphere is governed by energy transport in form ofconvection and radiation and their coupling with magnetic fields GREGORenhances our understanding of the various mechanisms of magneto-convectiveenergy transport which determine a wealth of structures in sunspots in activeregions and in the surrounding granulation We will report on a range oftopics including magnetic reconnection in a flare sunspot magnetic fields inthe photosphere and chromosphere material flows in active regions and weakmagnetism of the very quiet Sun Imaging data provide details of the solarphotosphere at a scale of 60 km on the Sun (008 arcsec angular resolution)GREGOR has resolved details smaller than 100 km in sunspot light bridgeswhich has advanced our understanding of magneto-convection The excellentmagnetic sensitivity in the IR enables the measurement of field strengths downto a few Gauss unraveling for the first time that even the most quiet areas onthe Sun are largely covered with magnetic field
PLENARY TALK Wednesday 20 September 2017 1100 h HS1
24 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Classical pulsators as population tracers a journey tothe far side of the Milky Way
I Dekany1 G Hajdu12 E K Grebel1 S Eyheramendy2 F Elorrieta2 MHanke1 A Jordan2 M Catelan2
1Astronomisches Rechen-Institut Zentrum fur Astronomie der UniversitatHeidelberg
2Instituto de Astrofısica Pontificia Universidad Catolica de Chile
Half of our Milky Way galaxy is located in a narrow stripe of the sky alongthe Galactic Equator disguised by interstellar dust which has been hinderingefforts to map the far side of the Galaxy with stellar tracers until now Deeptime-resolved photometric surveys now enable us to probe these regions usingdistant pulsating stars
We have been leveraging near-infrared time-series photometry from theVISTA Variables in the Vıa Lactea (VVV) Survey to conduct a deep censusof Southern Galactic Cepheids and RR Lyrae stars accurate standard can-dles and well-understood population tracers These valuable beacons enableus to probe the youngest and the oldest stellar populations in the bulge andat the far side of the Galactic disk toward high-extinction regions which areout of the reach of all other ongoing and future surveys By complementingthe photometry of these objects with kinematical and elemental abundancemeasurements we will be in the position to probe the structural and chemo-dynamical properties of the Milky Way over its complete extension and inferglobal properties of the Galaxy such as general symmetry spiral arm configu-ration bulk kinematics and metallicity distribution
In my talk I will present the current status of this collaborative projectand discuss our efforts to tackle the challenges of infrared light-curve classi-fication and distance analysis with a space-varying extinction curve I willsummarize new results based on the deep census of RR Lyrae stars and bothclassical and type II Cepheids in the 4th Galactic quadrant and toward theinner bulge I will highlight new insights into the spatial and metallicity dis-tribution of the primordial Galactic bulge and disk populations the mappingof the space-varying extinction curve toward the inner Galaxy and probinginto distant regions of the thin disk Finally I will outline future prospectswith the upcoming VVV Extended Survey and the important role of synergieswith the OGLE GLIMPSE and Gaia surveys
PLENARY TALK Wednesday 20 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 25
Highlight
A MUSE view on Galactic globular clusters
S Kamann1
1Liverpool John Moores University Astrophysics Research InstituteUnited Kingdom
The study of the dynamics of Galactic globular clusters has always been limitedby the relatively low number of stars accessible to velocity measurements Yetwe might just be witnessing the disappearance of this limitation The combi-nation of precise proper motion measurements and integral-field spectroscopypromises to provide a three-dimensional view of the central dynamics Mean-while the outer regions of the clusters can nowadays be thoroughly studiedwith multi-object spectrographs These data will give us important insightsinto some of the open questions in globular cluster research Do intermediate-mass black holes exist in their centres Do different populations have differentkinematics How do binary stars influence the cluster evolution
In my talk I want to give an overview of our current view of the dynamicsof globular clusters and introduce our campaign to learn more about themusing the MUSE integral field spectrograph It allows us to obtain samples ofseveral thousands of stars per cluster and study the cluster kinematics in greatdetail Our survey currently includes 25 clusters and I will present the resultswe obtained on their central dispersion and rotation fields In addition formany of the clusters multi-epoch data are already available opening up thepossibility to study binary stars
PLENARY TALK Wednesday 20 September 2017 1200 h HS1
26 Annual Meeting of the Astronomische Gesellschaft 2017
Review
A Panchromatic Comparative View of ExoplanetAtmospheres
D K Sing1 amp the Hubble PanCET collaboration
1University of Exeter United Kingdom
Hubble has played the definitive role in the characterisation of exoplanets andfrom the first planets available we have learned that their atmospheres areincredibly diverse With HST and JWST a new era of atmospheric stud-ies is opening up where wide scale comparative planetology is now possiblewhich can provide insight into the underlying physical process through com-parative studies Hubblersquos full spectroscopic capabilities are now being usedto produce the first large-scale simultaneous UVOIR comparative study ofexoplanets with 20 planets ranging from super-Earth to Neptune and Jupitersized planets With full UV to infrared wavelength coverage an entire planetrsquosatmosphere can be probed simultaneously and with sufficient numbers of plan-ets it will be possible to statistically compare their features with physicalparameters The panchromatic treasury program aims at build a lasting HSTlegacy providing the UV and blue-optical exoplanet spectra which will be un-available to JWST providing key insights into clouds and mass loss I willpresent the latest findings from the ongoing Hubble Treasury program revisitlongstanding and controversial issues with new data and discuss how JWSTwill transform the field of exoplanet characterisation
PLENARY TALK Thursday 21 September 2017 0900 h HS1
Gottingen September 18ndash22 2017 27
Highlight
CCAT-prime A fast Sub-millimeter Telescope forLarge-area Surveys
Frank Bertoldi1
1Argelander-Institut fur Astronomie Universitat Bonn
CCAT-prime is a 6-meter aperture sub-millimeter telescope being constructedon a 5600 meter high and dry site near ALMA by 2021 Its novel optical designdelivers a high-throughput and wide-field of view that enables rapid spectralline and multi-wavelength continuum surveys to (i) map local star-formingregions and galaxies in [CI] and mid-J CO (ii) study the cosmic evolutionof dusty star-forming galaxies and resolve the fainter objects responsible formost of the FIR background (iii) trace the first population of star-forminggalaxies through intensity mapping of their [CII] emission and (iv) put newconstraints on cosmology from galaxy cluster Sunyaev-Zelrsquodovich effect ob-servations Our German-US-Canadian collaboration welcomes input for thesurvey designs and on synergies with upcoming missions at other wavelengthssuch as eROSITA and Euclid
PLENARY TALK Thursday 21 September 2017 0930 h HS1
28 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The hot interstellar medium
M Sasaki1
1Dr Karl Remeis-Sternwarte Erlangen Centre for Astroparticle PhysicsFriedrich-Alexander-Universitat Erlangen-Nurnberg
The interstellar medium is heated and ionized by radiation by stellar windsand finally by supernova explosions of massive stars These processes areoften correlated in space and time generating superbubbles filled with hotthin plasma with sizes of typically 100 minus 1000 pc Supernova remnants andsuperbubbles can be studied best in soft X-ray line and continuum emissionsince the plasma in their interiors is very hot (106 minus 107 K) while there arealso a few cases in which the emission from non-thermal particles dominatesthat of the thermal gas I will present recent results of our studies of the hotinterstellar medium in the Milky Way and nearby galaxies I will discuss thephysics of the hot plasma the evolution and energetics of supernova remnantsand superbubbles and their impact on star formation
PLENARY TALK Thursday 21 September 2017 1000 h HS1
Gottingen September 18ndash22 2017 29
Review
Magnetic stars and their elusive planets
SVJeffers1
1Georg-August-Universitat Gottingen Institut fur Astrophysik
Exoplanet research is currently driven by the detection of smaller planetswith emphasis on rocky planets in the habitable zones of their host stars Inthis review I will describe how we are pushing the planet detection limits byunderstanding the planetary host star and by developing the next generationof planet hunting instrumentation At the high precision required to detectsuch planets it is necessary to also understand the host star as commonlyobserved stellar features can both mask the presence of a planet or indeedlead to a false detection The next generation of planet hunting instrumentswill also push this further by building on what we have learnt over the last 22years since the first exoplanet was confirmed
PLENARY TALK Thursday 21 September 2017 1100 h HS1
30 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Probing the Ionised ISM with LOFAR Pulsar Observations
JPW Verbiest12
1Fakultat fur Physik Universitat Bielefeld2Max-Planck-Institut fur Radioastronomie Bonn
The free electrons in the ionised component of the interstellar medium interactwith radio waves in many frequency-dependent ways The advent of highlysensitive low-frequency radio telescopes like LOFAR (the LOw-Frequency AR-ray) in Germany operated by the German LOng-Wavelength (GLOW) consor-tium allow unprecedentedly precise measurements of this plethora of effectsprobing the ionised gas in the ISM across a wide range of scales from thesmallest density variations causing diffractive scintillation to the large-scaleclouds probed by dispersion in decade-long pulsar-timing campaigns
In this talk we provide an overview of the capabilities of LOFAR to studythe ionised ISM and discuss in some detail the various pitfalls that plague thisnew window on the ISM We also briefly highlight the relevance of these studiesfor so-called pulsar-timing array projects aiming to detect gravitational wavesfrom a cosmological population of supermassive black-hole binaries
PLENARY TALK Thursday 21 September 2017 1130 h HS1
Gottingen September 18ndash22 2017 31
Highlight
First Science Results of the GRAVITY interferometer
O Pfuhl1 F Eisenhauer1 G Perrin2 K Perraut3 C Straubmeier4WBrandner5 A Amorim6 and the GRAVITY collaboration
1 Max-Planck-Institut fur extraterrestrische Physik 85748 Garching Germany2 LESIA Observatoire de Paris PSL Research University CNRS Sorbonne
Universites UPMC Univ Paris 06 Univ Paris Diderot Sorbonne Paris Cite92195 Meudon Cedex France
3 Univ Grenoble Alpes CNRS IPAG 38000 Grenoble France4 1 Physikalisches Institut Universitat zu Koln Zulpicher Str 77 50937 Koln
Germany5 Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany6 CENTRA and Universidade de Lisboa - Faculdade de Ciencias Campo Grande
1749-016 Lisboa Portugal
GRAVITY is a recently deployed instrument which coherently combines thelight of the European Southern Observatory (ESO) Very Large Telescope In-terferometer The instrument exploits the tremendous 130 m resolving powerand 200 m2 collective area of the VLTI GRAVITY uses a novel design offiber-fed integrated optics beam combination high resolution spectroscopyphase- tracking laser metrology and dual-beam operation GRAVITY opensthe techniques of phase-referenced imaging and narrow-angle astrometry tooptical interferometryWe present some key science results which have been obtained during thefirst year of operation This includes milli-arcsec scale imaging of the GalacticCenter supermassive black hole and its fast orbiting star S2 few microas differen-tial spectro-astrometry of the high mass X-ray binary BP Cru and the activegalactic nucleus of PDS 456 high accuracy visibility observations and imagingof the resolved stars ξ Tel and 24 CapGRAVITY has shifted the limits of optical interferometry in terms of sensi-tivity and accuracy by orders of magnitude During the commissioning wedemonstrated real-time phase stabilisation on stars as faint as mK asymp 10 magphase-referenced interferometry of objects as faint as mK asymp 18 mag visibil-ity accuracies better than 025 and a spectro-astrometric precision of betterthan ten micro-arcseconds (microas) The experimental dual-beam astrometrymode shows residuals as low as 50microas when following objects over severalmonths The demonstrated performance represents a game-changer in opticalinterferometry which leads to exciting new science prospects
PLENARY TALK Thursday 21 September 2017 1200 h HS1
32 Annual Meeting of the Astronomische Gesellschaft 2017
Public Talk
Wundervolles mysterioses Universum - eine (Zeit-)Reise
M Kramer
Max-Planck-Institut fur Radioastronomie Bonn
Das Universum ist 138 Milliarden Jahr alt Egal mit welchen Teleskopen wires beobachten es ist wunderschon und faszinierend Obwohl wir gerade inden letzten 100 Jahren viel von dessen Eigenschaften und Entwicklung gel-ernt haben bleibt das Universum weiterhin mysterios und birgt noch vieleGeheimnisse Warum sieht es so aus wie wir es beobachten und warum ger-ade jetzt Was sind Dunkle Materie und Dunkle Energie Gibt es Lebenauszligerhalb der Erdeu und ist es intelligent Hatte Einstein mit seiner all-gemeinen Relativitatstheorie recht oder gibt es Bausteine im Weltbild derFundamentalphysik die wir noch nicht verstehen oder gar kennen Mit mehrVerstandnis kommen auch mehr Fragen die aber um so faszinierender sindTrotz ndash oder gerade wegen ndash immer neueren und besseren Instrumenten ent-decken wir neue Phanomene und Details Der Vortrag versucht() die groszligenunbeantworteten Fragen der Astrophysik zu beschreiben und in Verbindungzu setzen
PLENARY TALK Thursday 21 September 2017 1930 h ZHG009
Gottingen September 18ndash22 2017 33
Review
Cosmic reionization and 21cm observations
B Ciardi1
1Max-Planck-Institut fur Astrophysik Garching
The reionization of the intergalactic medium represents a major phase tran-sition undergone by our Universe In this talk I will discuss our theoreticalunderstanding of the process together with current observational constraintsand the progress expected with measurements of the 21cm line from highredshift neutral hydrogen with instruments like LOFAR and SKA
PLENARY TALK Friday 22 September 2017 0900 h HS1
34 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
The systematic search for gravitational wave sourcesusing synoptic surveys
T Kupfer1 on behalf of the PTFZTF collaboration
1Division of Physics Mathematics and Astronomy California Institute ofTechnology Pasadena CA 91125 USA
Ultracompact binaries (UCB) are a rare class of binary systems with peri-ods below 60 min (detached or semidetached) consisting of a neutron star(NS)white dwarf (WD) primary and a He-starWDNS secondary The studyof ultracompact binaries and their subsequent mergers are important to ourunderstanding of such diverse areas as supernova Ia progenitors productionof r-process elements binary evolution and they are predicted to be the stronggravitational wave sources in the eLISA and LIGO-Virgo band
The Zwicky Transient Facility is the next generation of optical synopticsurveys utilizing the entire focal plane of 47 deg2 of the 12m telescope onMount Palomar The field-of-view allows us to cover the entire visible sky inone night revisiting fields on timescales of a few hours and providing hundredsof visits per field each year Part of the survey will be a public 3-4 nightcadence all sky survey as well as a nightly sweep of the Galactic Plane Scienceoperations is expected to start by the end of 2017
In this talk I will give an overview of the survey design and our effortto identify the optical counterpart to NS mergers triggered by LIGO I amlead investigator of an approved high-cadence survey covering the full innerPlane visible from the northern hemisphere as part of ZTF We will obtain2-3 hr continuous lightcurves of each field with a cadence of 40 sec startingwinter 2017 to identify the Galactic population of ultracompact binaries Iwill give an overview of the survey as well as discuss the expected numbers ofultracompact eLISA sources from this survey
PLENARY TALK Friday 22 September 2017 0930 h HS1
Gottingen September 18ndash22 2017 35
Highlight
IllustrisTNG the new frontier to understand theco-evolution of dark-matter and galaxies with
cosmological simulations of structure formation
A Pillepich1 and the IllustrisTNG team2
1Max-Planck-Institut fur Astronomie Konigstuhl 17 69117 Heidelberg Germany2wwwtng-projectorg
I will describe the numerical efforts to simulate galaxies with the code AREPOacross an unprecedented range of halo masses environments evolutionarystages and cosmic times In particular I will focus on the IllustrisTNGproject (wwwtng-projectorg) a collaboration among Heidelberg MunichNew York and Boston There we are aiming to simulate a series of threegravity+magnetohydrodynamics cosmological volumes (50 100 300 Mpc aside respectively) capable of both resolving the inner structures of galaxiesas small as the classical dwarfs of the Milky Way as well as of sampling thelarge scale structure of the Universe with thousands among groups and clus-ters of galaxies I will briefly review what is explicitly and empirically solvedin gravity+magnetohydrodynamics simulations for galaxy formation in a cos-mological context and what is required and what it means to ldquosuccessfullyrdquoreproduce populations of galaxies which resemble the real ones I will there-fore show preliminary results from the IllustrisTNG simulations by focusingon the assembly of the most massive structures in the Universe the build upand characterisation of the faint stellar envelopes around galaxies the connec-tions of the latter to their host DM haloes and our theoretical expectationsfor the distribution of dark matter (DM) and stars on large scales and withingalaxies
PLENARY TALK Friday 22 September 2017 1000 h HS1
36 Annual Meeting of the Astronomische Gesellschaft 2017
Review
Realistic MHD simulations of the solar atmosphere
M Rempel1
1High Altitude Observatory National Center for Atmospheric ResearchUnited States
Realistic simulations of the solar photosphere date back almost three decadesWhile the physical ingredients in terms of compressible MHD a realistic equa-tion of state and 3D radiative transfer have remained mostly unchangedtremendous progress since then can be mostly attributed to an about million-fold increase of computing power in combination with improvements in codeefficiency and robustness Today about a handful of mostly independent codesare in use in the solar physics community and high resolution simulations havecontributed significantly to almost all aspects of photospheric magnetoconvec-tion In this talk I will give a brief overview of recent developments and focusin particular on (1) Small-scale dynamo simulations that provide an explana-tion of quiet sun magnetism (2) Magneto-convective sunspot models that givea consistent picture of sunspot fine structure from umbral dots to penumbralfilaments and light bridges and (3) Models of flux emergence on scales of ac-tive regions that demonstrate the amplification of emerging flux to pores andsunspots including structures such as complex light bridges and penumbrae
PLENARY TALK Friday 22 September 2017 1100 h HS1
Gottingen September 18ndash22 2017 37
Highlight
Modellerrsquos view to solar and stellar dynamosperspectives and challenges
M J Kapyla1
1Max-Planck-Institut fur Sonnensystemforschung Gottingen
Thanks to the steadily increasing computational resources global convectionsimulations of stars of various types are becoming abundant Even thoughthese models still are - and will to some extent always be - only toy modelsof the real objects they provide us very useful information if properly ex-ploited The challenge is to be able to meaningfully analyse the massive dataand develop tools with which one is able to establish which physical effectis responsible for a certain phenomenon emerging in the models - also thosearising from turbulent effects posing the greatest challenges
Highlights of recent modelling efforts include the emergence of solar-likedynamo solutions without a tachoclinic shear layer dynamo solutions withmultiple cycles of different lengths and spatial distributions models that spon-taneously generate irregular behavior and grand-minima type epochs and theestablished transition from axisymmetric to non-axisymmetric modes as therotation rate is increased In this talk these novel findings are reviewed andtheir implications for observations are discussed
PLENARY TALK Friday 22 September 2017 1130 h HS1
38 Annual Meeting of the Astronomische Gesellschaft 2017
Highlight
Tracking Jupiter with a Trapezoid Geometrical Methodsin Ancient Babylonian Astronomy
M Ossendrijver12
1Institut fur Philosophie Humboldt-Universitat zu Berlin Unter den Linden 610099 Berlin
2Excellence Cluster TOPOI Hannoversche Straszlige 6 10115 Berlin
On four Babylonian clay tablets written between 350 and 50 BCE the distancetravelled by Jupiter along the ecliptic is computed as the area of a figure intime-velocity space (2016 Science 351 482ndash484) This figure which has theform of a trapezoid describes Jupiterrsquos changing velocity for an interval of 60days while its area yields the total distance covered during that time Onthese tablets the moment when Jupiter has covered half the total distance isalso computed geometrically by partitioning the trapezoid into two smallerones of equal area These findings challenge the widely accepted view thatBabylonian astronomers only used arithmetical methods unlike their ancientGreek colleagues However the geometrical approach to motion attested inthe Babylonian tablets is unknown from ancient Greek astronomy and waspreviously thought to have been invented by European scholars in the 14thcentury AD
PLENARY TALK Friday 22 September 2017 1200 h HS1
Gottingen September 18ndash22 2017 39
SPLINTER ACTIVITY
Splinter Meetings
Splinter meetings will be held in parallel on Tuesday to Thursday afternoons
Activity ndash Solar and stellar activity and variability
Convenors H Peter (MPS Gottingen) M Kapyla (MPS Gottingen) P Kapyla(AIP Potsdam) N Krivova (MPS Gottingen) A Reiners (Universitat Gottingen)S Shapiro (MPS Gottingen) J Warnecke (MPS Gottingen)
Thursday 21 September 2017 Auditorium MPS
Generation of magnetic field the dynamo
1400ndash1430 Jorn WarneckeDynamo mechanism for magnetic activity and cyclesof stars
1430ndash1445 Mariangela VivianiAxi- to non-axisymmetric dynamo transition in stellarmodels with varying rotation rate
Signatures and variability of magnetic activity at the surfaceand chromosphere1445ndash1515 Emre Isik
Search for physical mechanisms underlying solar andstellar activity variations
1515ndash1530 Oleksii KuzmychovStrong surface magnetic field on a brown dwarf
1530ndash1545 Charlotte NorrisSpectral variability of photospheric radiation due tosmall-scale magnetic features
1545ndash1555 Veronika WitzkeEffect of Metallicity on Stellar Brightness Variability
40 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER ACTIVITY
1555ndash1610 Theodosios ChatzistergosConnecting chromospheric emission to photosphericmagnetic field
1610ndash1620 Hongrui WangMeasurements of Total Solar Irradiance on FengYunndash3Satellites from 2008 to 2017
1620ndash1630 Discussion and 2-min advertisement of poster PatrickSchoferChromospheric Activity Indicators in Visible Light andNear Infrared
1630ndash1700 Coffee Break amp Poster Session
Signatures and variability of magnetic activity at the surfaceand chromosphere (cont)1700ndash1715 Chi Ju Wu
Solar Irradiance Reconstruction over Holocene AConsistent Multi-proxy Reconstruction
1715ndash1730 Eliana Maritza Amazo-GomezGPS A novel method to obtain stellar rotational pe-riods
1730ndash1745 Timo ReinholdEvidence for photometric activity cycles in 3203 Keplerstars
X-ray emission from hot plasma and variability
1745ndash1815 Stefan CzeslaX-ray emission and activity in late-type stars
1815ndash1830 Nina-Elisabeth NemecThe XUV Sun in Time
1830ndash1845 Hardi PeterScaling MHD models of solar active regions to moreactive stars
1845ndash1900 Discussion
Gottingen September 18ndash22 2017 41
SPLINTER AGN
AGN ndash Active Galactic Nuclei
Organizers Wolfram Kollatschny (Universitat Gottingen) Martin Haas (RUBochum) Helmut Meusinger (TLS Tautenburg) Michael Ramolla (RU Bochum)Matthias Zetzl (Universitat Gottingen)
Wednesday 20 September 2017 HS4
1400ndash1430 Shai KaspiReverberation Mapping of the Most High LuminosityQuasars
1430ndash1445 Helmut MeusingerVariability timescales of QSOs from the Tautenburglong-term monitoring program
1445ndash1505 Francisco Pozo NunezOptical Photometric Monitoring of Active GalacticNuclei at Wise Observatory
1505ndash1515 Matthias ZetzlLine profile variations in the changing look AGN HE1136-2304
1515ndash1525 Catalina Sobrino-FigaredoIC4329A a red Seyfert-1 nucleus in an edge-on hostgalaxy
1525ndash1555 Doron CheloucheOn the Origin of Optical Time Delays in AGN
1555ndash1615 Ewald PuchweinThe role of AGN in cosmic reionization
1615ndash1630 Frank RiegerThe non-thermal astrophysics of relativistic AGN jets
1630ndash1700 Coffee Break amp Poster Session
42 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER AGN
1700ndash1720 Victor MarianTesting the connection between major mergers and thetriggering of high-accretion black holes
1720ndash1735 Zohreh GhaffariGalaxy overdensities around 3C radio galaxies andquasars at 1 amplt z amplt 25 revealed by Spitzer 3645um and Pan-STARRS
1735ndash1755 Eleni VardoulakiFR-type radio sources in COSMOS relation to sizeaccretion modes and large-scale environment
1755ndash1815 Jan-Torge SchindlerThe Extremely Luminous Quasars Survey (ELQS) inSDSS
1815ndash1835 Silke BritzenOJ287 ndash Deciphering the Rosetta stone of blazars
1835ndash1855 Claus LammerzahlAccretion disks in space-times of compact objects withmass quadrupole
Gottingen September 18ndash22 2017 43
SPLINTER CCAT
CCAT ndash CCAT-prime new submillimeter science oppor-tunities
Organizers Peter Schilke Jurgen Stutzki (Universitat zu Koln) Frank Bertoldi(Universitat Bonn)
Tuesday 19 September 2017 Auditorium MPS
1400ndash1415 F BertoldiCCAT-prime project overview
1415ndash1435 J StutzkiCCAT-p first light instrumentation
1435ndash1455 R SimonCCAT-p The Galactic ECology (GEco) Project
1455ndash1515 B MagnelliHigh-redshift galaxy surveys with CCAT-p
1515ndash1530 Break
1530ndash1550 D RiechersTomography of Cosmic Reionization Through [CII] In-tensity Mapping at Redshifts 5ndash9 with CCAT-p
1550ndash1605 K BasuCluster cosmology with CCAT-p
1605ndash1620 J ErlerObservations of the relativistic SZ effect from Planckto CCAT-p
44 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER COMPUTATION
Computation ndash Computational Astrophysics
Convenors Rolf Kuiper (Universitat Tubingen) Hubert Klahr (MPIA) Wil-helm Kley (Universitat Tubingen)
Tuesday 19 September 2017 HS3
1400ndash1425 Klaus DolagMagneticum The largest cosmological hydrodynami-cal simulations
1430ndash1455 Thomas GuilletTowards Fast High-Order Magnetohydrodynamics inthe AREPO Code
1500ndash1525 Ewald PuchweinForming (more) realistic galaxy clusters in simulations
1530ndash1555 Daniele SoriniConstraining Feedback Prescriptions with Ly α Ab-sorption
1600ndash1625 Robert BrauerLine and continuum radiative transfer simulationsFrom magnetic fields to polarization
Wednesday 20 September 2017 HS3
1400ndash1425 Wolfram SchmidtSimulations of merging cool-core clusters
1430ndash1455 Anusha BhasariNon-equilibrium energy balance in the solar chromo-sphere
1500ndash1525 Christoph SchaferA Smooth Particle Hydrodynamics Code to Model Col-lisions Between Solid Self-Gravitating Objects
1530ndash1555 Johannes WichtSimulating the Jupiterrsquos interior dynamics
Gottingen September 18ndash22 2017 45
SPLINTER E-SCIENCE
E-Science ndash E-Science E-Infrastructures and VirtualObservatory (Machines of Discovery)
Organizers Enke (AIP Potsdam) Polsterer (HITS gGmbH) Wambsgans (Uni-versitat Heidelberg)
Tuesday 19 September 2017 HS2
1400ndash1420 Kai PolstererReproducibility in Era of Data Driven Science
1420ndash1440 Jochen Klar5 years of Daiquiri ndash Lessons learned and further de-velopments
1440ndash1500 Klaus DolagA web portal for hydrodynamical cosmological simu-lations
1500ndash1520 Markus DemleitnerPublishing Solar System Data using EPN-TAP andDaCHS
1520ndash1540 Ole StreicherLicensing of Open Source projects
1540ndash1600 Christian DerschFedora Astronomy ndash Integration of astronomical soft-ware into a Linux distribution
1600ndash1620 Antonio DrsquoIsantoProbabilistic photometric redshift derivation frommulti-band imaging data
1625ndash1630 Poster-Intro Milan SpasovicA study of photometric errors on two different photo-graphic plate scans
Thursday 21 September 2017 HS2
1400ndash1630 Authors of the Whitepaper RDS-Members NNDiscussion Denkschrift and WhitepaperRole of E-Science in the next Decade
46 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EDUCATION
Education ndash Astronomy and Education
Organizers Bildungsausschuss der Astronomischen Gesellschaft
Contact Oliver Schwarz (Universitat Siegen)
Thursday 21 September 2017 HS5
1400ndash1420 Lenka BzduskovaStructure-forming phenomena in the universe and sim-ple applications at school
1420ndash1440 Sascha HohmannStable Atmospheres inside and outside the Solar Sys-tem
1440ndash1500 Oliver SchwarzThe Michelson-Morley Experiment in a proper repre-sentation
1500ndash1520 Alexander KupperThe need for astronomical contexts in inclusive Physicsclasses
1520ndash1540 Alexander KupperlsquoWith light through our solar system and beyondrsquo ndash anastronomical learning conception for inclusive teachingof Physics
1540ndash1600 Martin QuastWhite dwarfs as school topic
1600ndash1620 Hans-Otto CarmesinClimate Change Discoveries in Physics Lessons
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Hans-Otto CarmesinQuantum Gravity Discoveries about the early Uni-verse including big bang big bounce and a critical dis-cussion of these
Gottingen September 18ndash22 2017 47
SPLINTER EDUCATION
1720ndash1740 Simon KrausThe Pitfalls of Determining Time and Location
1740ndash1800 Michael GeffertA research project for students from schools based onvariable stars
1800ndash1820 Norbert JunkesDas Radioteleskop Effelsberg ndash Ein neues Faltblattzum Einsatz bei Vortragen im Besucherpavillon desRadioteleskops
1820ndash1840 Catharina RoggePlanung und Durchfuhrung einer astrophysikalischenProjektwoche fur die Oberstufe
48 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EROSITA
eROSITA ndash eROSITA is Coming Opportunities to StudyCosmology and Large Scale Structure with X-ray SelectedClusters and AGN
Organizers A Finoguenov A Merloni (MPE Garching) J Mohr (LMUMunchen) T Reiprich (Universitat Bonn)
List of submitted contributions (Confirmation of program and schedule by thesplinter organizers pending)
Thursday 21 September 2017 HS4
Klaus DolagGalaxy Clusters from the Magneticum Simulations
Sebastian GrandisForecasting Impact of DES Weak Lensing Mass Cali-bration on eROSITA Cluster Cosmology Constraints
Matthias KleinThe multi-component matched filter cluster confirma-tion tool (MCMF)
Andrea MerlonieROSITA on SRG an overview
Andrea MerloniUnderstanding AGN evolution with large X-ray sur-veys prospects for eROSITA
Joseph MohrSunyaev-Zelrsquodovich Effect Galaxy Cluster Cosmologyand Implications for eROSITA
Aarti NagarajanWeak-lensing mass calibration of the Sunyaev-Zelrsquodovich effect using APEX-SZ galaxy clusters
Gottingen September 18ndash22 2017 49
SPLINTER EROSITA
Florian PacaudGalaxy clusters as cosmological probes from observa-tions to parameter constraints
Annalisa PillepichThe X-ra cluster survey with eROSITA constraints ondark-energy
Miriam Elizabeth Ramos-CejaSynthetic simulations of the extragalactic sky seen byeROSITA pre-launch selection functions and cosmo-logical forecasts
Thomas ReiprichResults from current X-ray selected galaxy cluster sam-ples and way forward to eROSITA cosmology
Tim SchrabbackCalibrating the masses of high-redshift galaxy clusterswith deep weak lensing data
1630ndash1700 Coffee Break amp Poster Session
50 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EUCLID
Euclid ndash The Euclid space mission
Organizers Tim Schrabback (Universitat Bonn) Knud Jahnke (MPIA Heidel-berg)
Wednesday 20 September 2017 HS2
1400ndash1415 Knud JahnkeThe Euclid Dark Universe Mission an introduction
1415ndash1430 Frank GruppThe EUCLID NISP instrument status
1430ndash1445 Gregor SeidelHow to forecast a Euclid sky simulating the Euclidtelescope
1445ndash1500 Ariel Sanchez Euclid galaxy clustering analysis Overview
1500ndash1515 Tim SchrabbackWeak lensing science with Euclid An overview
1515ndash1530 Joseph MohrLegacy Science with the Euclid Dataset
1530ndash1545 Jochen WellerCosmology with Galaxy Cluster with Euclid
1545ndash1600 Luca AmendolaThe Euclid Theory Working Group
1600ndash1615 Holger IsraelPreparing Dark Energy Survey imaging for EuclidOverview amp Activities of Organizational Unit Exter-nal Data (OU-EXT) Germany
1615ndash1630 Martin KummelOU-MER Status
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 51
SPLINTER EUCLID
1700ndash1715 Maximilian FabriciusThe German Euclid Science Data Center amp ScientificChallenge 3
1715ndash1730 Malte TewesWeak-lensing shear measurement with machine learn-ing
1730ndash1745 Stefan HilbertHow Accurate are Gravitational Lensing Simulations
1745ndash1800 Fabian SchmidtResponses a novel approach to the covariance of thematter power spectrum
1800ndash1815 Franz ElsnerReconstructing cosmological initial conditions usingBayesian statistics
1815ndash1830 Klaus DolagThe Magneticum Simulations
1830ndash1900 Discussions
52 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER EXOPLANETS
Exoplanets ndash Exoplanets
Organizers Sandra Jeffers (Universitat Gottingen) Alexander Krivov (Univer-sitat Jena) Heike Rauer (DLR Berlin) Ansgar Reiners (Universitat Gottingen)
Wednesday 20 September 2017 HS1
1400ndash1405 Sandra JeffersWelcome and introduction
1405ndash1440 Heike RauerSPP1992 Exploring the Diversity of Extrasolar Plan-ets
1440ndash1500 Ansgar ReinersBlue Planets around Red Stars ndash DFG Research Unitabout the CARMENES Search for Exoplanets
1500ndash1520 Trifon TrifonovFirst results from CARMENES visual-channel radial-velocity measurements
1520ndash1550 Alexis SmithAn Earth-sized planet transiting an M-dwarf in a 43-hour orbit
1540ndash1600 Matthias MallonnThe optical slope in exoplanet spectra and a host starvariability survey
1600ndash1620 Mahmoudreza OshaghDetecting the variation of measured spin-orbit anglesof exoplanet due to the stellar activity
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Ronald RedmerMatter Under Planetary Interior Conditions
1720ndash1740 Alexander KrivovDebris Disks in Planetary Systems
Gottingen September 18ndash22 2017 53
SPLINTER EXOPLANETS
1740ndash1800 Vera WolthoffEvolution of Planetary Systems on the Giant Branch
1800ndash1820 Sebastian KohlA search for bow shocks around hot gaseous planets
1820ndash1840 Mark BoothALMA Observations of Planetary Systems
1840ndash1900 Florian KirchschlagerConstraints on the structure of hot exozodiacal dustbelts and their observability in the MIR
54 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HIRES
HiRes ndash High-Resolution Solar Imaging Spectroscopyand Polarimetry - Recent Developments in Science andInstrumentation
Convenors Andreas Lagg (MPS Gottingen) Nazaret Bello Gonzalez (KISFreiburg) Meetu Verma (AIP Potsdam) Rolf Schlichenmaier (KIS Freiburg)Horst Balthasar (AIP Potsdam)
Wednesday 20 September 2017 Auditorium MPS
1400ndash1415 Iker RequereyMagnetic vortex flow at a supergranular vertex
1415ndash1430 Adalbert DingDoppler Spectroscopy of the Solar Corona Detectionof Cool Prominence Material Embedded in a Hot FeXIV Plasma Environment within a Fast Moving CME-Front
1430ndash1445 Andrea DierckeMulti-wavelength observations of an arch filament sys-tem
1445ndash1500 Anjali KaithakkalSmall-scale Flux Cancellations Observed with SunriseIIIMaX
1500ndash1515 Ricardo GafeiraSmall scale chromospheric fibrils observed by SUN-RISE 2
1515ndash1530 Meetu VermaHigh-resolution imaging and near-infrared spec-troscopy of penumbral decay
1530ndash1545 Narayanamurthy SmithaProbing the photospheric magnetic field with new spec-tral line pairs
Gottingen September 18ndash22 2017 55
SPLINTER HIRES
1545ndash1600 Fatima KahilBrightness of solar magnetic elements as a function ofmagnetic flux at high spatial resolution
1600ndash1615 Ivan MilicSpectropolarimetric inversions using spectral linesformed in non-local thermodynamic equilibrium
1615ndash1630 Michiel van NoortImage restoration of solar slit spectra
1630ndash1700 Coffee Break amp Poster Session
1700ndash1715 Tino RiethmullerThe potential of many-line inversions of photosphericspectropolarimetric data in the visible and near UV
1715ndash1730 Nazaret Bello GonzalezThe new understanding of penumbral formation
1730ndash1745 Sebastian HochDynamic fine-structure in magnetic processes in thesolar photosphere
1745ndash1800 Rolf SchlichenmaierThe Jurcak criterion Magnetic property of boundariesin pores proto-spots and umbrae
1800ndash1815 Franziska ZeunerFast dual-beam spectropolarimetry ndash first results onscattering polarization measurements with FSP II atthe DST
1815ndash1830 Nazaret Bello GonzalezVTF a visible tunable filter for the DKIST
1830ndash1845 Kinga AlbertAutonomous data reduction for the space-borne spec-tropolarimeter PHI
1845ndash1900 Carsten DenkerHigh-resolution Fast Imager (HiFI) Image Quality andImage Restoration
56 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER HOTSTARS
HotStars ndash Hot Stars and Binary Evolution
Organizers Andreas Sander (Universitat Potsdam) Kerstin Weis (RU Bochum)Veronika Schaffenroth (Universitat Tubingen)
Thursday 21 September 2017 HS3
1400ndash1405 Welcome
1405ndash1423 Andreas SanderModeling hot star atmospheres Challenges applica-tions and the next generation
1423ndash1441 Rainer HainichMassive binary stars with relativistic companionsStudying donor winds with the HST
1441ndash1459 Martin QuastMass transfer evolution in high mass X-ray binaries
1459ndash1517 David GrunerAn in-depth look into the earliest O-type Galactic bi-nary HD 93129A
1517ndash1535 Tomer ShenarMagnetic stars as a laboratory for constraining theweak-wind problem in massive stars
1535ndash1553 Denny HoyerThe giant-dwarf connection
1553ndash1611 Lisa LoblingSpectral Analysis of the hybrid PG 1159-type CentralStars of the Planetary Nebulae Abell 43 and NGC 7094
1611ndash1629 Helge TodtThe Born-again Planetary Nebulae Abell 30 and Abell78
1630ndash1700 Coffee Break amp Poster Session
Gottingen September 18ndash22 2017 57
SPLINTER HOTSTARS
1700ndash1702 Poster advertisement Conny GlaserStellar Laboratories High-precision Atomic Physicswith STIS
1702ndash1704 Poster advertisement Michael KnorzerThe enigma of the missing flux in the hot helium-richwhite dwarf RE 0503-289
1704ndash1706 Poster advertisement Tomer ShenarThe formation of the observed Wolf-Rayet stars in theMagellanic Clouds is not dominated by mass transferin binaries
1707ndash1725 Stephan GeierThe catalog of hot subdwarf stars
1725ndash1743 Thomas KupferThe population of ultracompact hot subdwarf binaries
1743ndash1801 Veronika SchaffenrothNews from the EREBOS project
1801ndash1819 Felix MackebrandtThe stellar pulsation timing method to detect substel-lar companions
1819ndash1837 Sonja SchuhThe O-C diagram of V391 Peg revisited planet or not
1837ndash1855 Marilyn LatourSpectral analysis of four very similar hot hydrogen-richsubdwarf O stars
58 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER NON-THERMAL
Non-Thermal ndash Surveying the non-thermal Universe
Organizers Dominik Elsasser (TU Dortmund) Marcus Bruggen (UniversitatHamburg) Matthias Hoeft (TLS Tautenburg) Karl Mannheim (UniversitatWurzburg)
Tuesday 19 September 2017 HS4
1400ndash1430 Marilyn CrucesThe High Time Resolution Universe Survey For Pul-sars
1430ndash1500 Klaus DolagMagnetic Fields in Galaxy Clusters and beyond
1500ndash1530 Jakob GelszinnisMerging galaxy clusters in radio surveys
1530ndash1600 Leon HoubenSemi-simultaneous detections of single pulses in the ra-dio regime with Effelsberg and Lofar
Gottingen September 18ndash22 2017 59
SPLINTER PLASMA
Plasma ndash Space Plasma Processes in Stellar and Plane-tary Environments
Convenors Thomas Wiegelmann (MPS Gottingen) Joachim Saur (Universitatzu Koln)
Tuesday 19 September 2017 D+E+F MPS
1400ndash1405 Wiegelmann SaurWelcome
1405ndash1435 Horst FichtnerThe Structure of the Heliosphere and AstrospheresMeasurements and Simulations
1435ndash1450 Suzana S A SilvaTemperature evolution of solar atmosphere for a non-local heat flux
1450ndash1505 Iulia ChifuGlobal coronal magnetic field modeling using stereo-scopic constrains
1505ndash1520 Radoslav BucikOrigins of 3He-Rich Solar Energetic Particles
1520ndash1550 Elias RoussosSaturnrsquos radiation belts a comprehensive view afterthe end of the Cassini mission
1550ndash1605 Joachim SaurWave particle interaction in Jupiterrsquos magnetosphereComparison with JUNO observations of Jupiterrsquos au-rora
1605ndash1620 Christian FischerElectromagnetic star-planet-interaction atTRAPPIST-1
60 Annual Meeting of the Astronomische Gesellschaft 2017
SPLINTER POPULATIONS
Populations ndash Stellar Populations in and around theMilky Way
Convenors S Kamann (Liverpool University) E K Grebel (ARI Heidelberg)M Hilker (Garching) E Starkenburg (AIP Potsdam) S Dreizler (UniversitatGottingen) T-O Husser (Universitat Gottingen)
Tuesday 19 September 2017 HS5
1400ndash1429 Stefan JordanThe Gaia Mission ndash Overview First Results and futureprospects
1429ndash1458 Andreas KochStellar populations in the bulge ndash from no-resolutionto high-resolution
1458ndash1516 Anke ArentsenUncovering metal-poor stars in the Galactic bulge withthe Pristine survey
1516ndash1545 Roelof de Jong4MOST ndash The facility to spectrally explore Stellar Pop-ulations in and around the Milky Way
1545ndash1614 Tim-Oliver HusserMUSE ndash The Discovery Machine
1614ndash1630 Fabian GottgensSearch for emission line objects in Galactic globularclusters
Wednesday 20 September 2017 HS5
1400ndash1418 Marilyn LatourSpectroscopic insights on the extreme horizontalbranch population of omega Centauri
Gottingen September 18ndash22 2017 61
SPLINTER POPULATIONS
1418ndash1436 Steven HammerichMUSE spectroscopy of Horizontal Branch stars inomega Cen and NGC 6752
1436ndash1454 Benjamin GiesersBinary stars in Galactic globular clusters
1454ndash1524 Maria-Rosa CioniThe Magellanic Clouds
1524ndash1542 Dalal El-YoussoufiMorphology and Spatial distribution of Stellar Popu-lations in the Magellanic Clouds from the VMC survey
1542ndash1600 Varsha RamachandranStellar population of the superbubble N 206 in theLMC
1600ndash1630 Lex KaperE-ELTMOSAIC Exploring massive star populationsin the Local Group and beyond
1630ndash1700 Coffee Break amp Poster Session
1700ndash1720 Tomer ShenarThe Wolf-Rayet population in the Magellanic Cloudsand implications on star formation
1720ndash1740 Martin RothSpectacular details of resolved stellar populations inNGC300 revealed through the combination of ACSwith MUSE
1740ndash1810 Bertrand LemasleAbundance gradients in the Milky Way disk
1810ndash1830 Guillaume GuiglionThe AMBRE Project r-process element abundancesin the Milky Way thin and thick discs
1830ndash1900 Ulrich HeberHypervelocity stars
62 Annual Meeting of the Astronomische Gesellschaft 2017
SATELLITE EVENTS
Satellite Events
Several additional events are taking place during and around the conferenceHere is a list of those events with additonal information
AG Members Meeting
The members meeting of the German Astronomical Society will take place onTuesday evening starting at 1700 in the auditorium at the MPS This is aclosed session in which all members of the AG can participate
Astro-Frauen-Netzwerk Get-together
The Astro-Frauen-Netzwerk Get-together will take place on Monday afternoonstarting at 1600 in seminar rooms A+B+C at the MPS and on Wednesdayduring the lunch break at 1240 in the seminar room SR17 of the Institute forAstrophysics (physics building F wing 5th floor or weather permitting on theterrace just next to the seminar room)
Young Astrophysicists Meeting
The Young Astrophysicists Meeting will take place on Monday afternoon start-ing at 1300 in seminar rooms A+B+C at the MPS
Meeting Rat Deutscher Sternwarten
The Rat Deutscher Sternwarten meets on Monday starting at 1300 in theauditorium at the MPS This is a closed session
Public Outreach in Astronomy
The Public Outreach in Astronomy meeting will take place on Wednesdayafternoon starting at 1400 in the seminar room SR17 of the Institute forAstrophysics The goal of this workshop is to improve communication facilitatenetworking and to share best-practice examples in the German astronomyoutreach community The meeting will be held in German
Gottingen September 18ndash22 2017 63
ARBEITSKREIS ASTRONOMIEGESCHICHTE
History of AstronomyThe Working Group History of Astronomy Meeting starts on Sunday 17 Septem-ber width guided tours and a dinner A scientific colloquium will be held onMonday in the Historical Observatory (Geismarlandstr 11 37083 Gottingen)Please see also the website of the meeting for additional information and regi-stration requirements
Kolloquium des Arbeitskreises Astronomiegeschichtein der Astronomischen Gesellschaft
Colloquium of the Working Group History of Astronomyin the Astronomical Society (in German)
Astronomie und Astrologie im Kontext von Religionen
Montag 18 September 2017 Historische Sternwarte
0815ndash0900 Registration Anmeldung
0900ndash0910 Eroffnung
Eroffnungsreferate
0910ndash0955 Prof Dr Christoph Meinel (Universitat Regensburg)Melanchthons semiologische Astrologie
0955ndash1040 Prof Dr Fritz Krafft (Philipps-Universitat Marburg)
Uberkonfessionelle christliche Glaubensinhalte als Be-gleiter Johannes Keplers auf dem Weg zu einer neuenAstronomie und Astrologie
1040ndash1110 Kaffepause
1110ndash1135 Marta Quatrale PhD cand (Berlin)rdquoIdeo sperandum est eum abbreviaturum tempusrdquoSome remarks on (pseudo)science and apocalypticalclaims in Lutherrsquos ambiguous position concerning thecomputation of the End of the Time
1135ndash1200 Dipl-Math Harald Gropp (Heidelberg)Die Angst der Astrologen vor der Reformation und derTheologen vor der Sintflut
64 Annual Meeting of the Astronomische Gesellschaft 2017
ARBEITSKREIS ASTRONOMIEGESCHICHTE
1200ndash1225 Prof Dr Reinhard Folk (Linz Osterreich) die vier groszligte Wunderwerck GOTtes HimmelErdt die Zeit und der Mensch Glaube und Weltbildum 1600 in Philipp Uffenbachs rdquoZeitweiserrdquo
1225ndash1345 Mittagspause
1345ndash1410 PD Dr Mateusz Kapustka (Zurich Schweiz)Bund am Himmelsglobus Abrahamitische Unterschei-dung und die astronomische Ursprungsfrage neuzeit-licher Bildlichkeit
1410ndash1435 Dr Xian Wu (Jena)Beitrage von Taoisten zur Entwicklung Beschreibungund Verbreitung des traditionellen chinesischen Stern-bildersystems
1435ndash1500 Prof Dr Volker Bialas (Munchen)Der Streit um die Osterfestberechnung im fruhen Mit-telalter Eine Fallstudie zum Verhaltnis der romischenund der keltisch-irischen Kirche
1500ndash1520 Kaffeepause
1520ndash1545 Prof Dr Frank Furbeth (Frankfurt am Main)AstronomieAstrologie und Heilsgeschichte in der Lit-eratur des Spatmittelalters am Beispiel des Grals imParzivalrsquo Wolframs von Eschenbach
1545ndash1610 PD Dr Ute Frietsch (Wolfenbuttel)Religioses Wissen in Paracelsusrsquo Schrift rdquoAstronomiaMagna oder Die gantze Philosophia sagax der grossenund kleinen Weltrdquo (1571)
1610ndash1630 Pause
1630ndash1655 Dipl-Lehrer Stefan Kratochwil (Jena)Der Zusammenhang von Astrologie und Theologie beiAgrippa von Nettesheim
1655ndash1700 Schluszligworte und Verabschiedung
1700ndash1800 Mitgliederversammlung
Gottingen September 18ndash22 2017 65
LEHRERFORTBILDUNG
Training of Teachers (Lehrerfortbildung)
The Teacher Training (in German) will take place on Friday afternoon startingat 1400 in the seminar room SR17 of the Institute for Astrophysics Pleasenote that the Teacher Training is different from the splinter meeting Astronomyand Education taking place on Thursday
Freitag 22 September 2017 1400ndash1830 SR17
1400 Oliver SchwarzDie Entdeckung der Ceres ndash ein rdquoWissenschaftskrimirdquoum C F Gauszlig aus dem Jahre 1801
1500 Frederic HessmanSchulen ans Teleskop ndash Die Nutzung von globalenTeleskop-Ressourcen
1600 Wiltrud NiemeyerDas Weltall zum Anfassen ndash Experimente mit Schulernzu Stromungsprozessen und Turbulenz im Universum
1700 Gesa BeckerFuhrung durch die Labore des MPI fur Sonnensystem-forschung
66 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Posters
Posters will be on display in the foyers of the physics building from Tuesdaymorning until Friday noon The following list provides the name of the pre-senting author (in general the first author) Poster abstracts including thecomplete list of authors are available online
General Poster
Erik HoslashgAfter 64 years dedicated to astrometric instrumentation a Gaia successor isin sight
Randolf KleinFIFI-LS Observations of Galactic PDRs
Randolf KleinInfrared Observations with SOFIA
Iris TraulsenDigging deeper The first catalogue of X-ray detections from stackedXMM-Newton observations
Splinter Activity
Majid PourabdianDeep focusing in time-distance helioseismology
Bastian ProxaufSolar near-surface flows from ring-diagram helioseismology
Patrick SchoferChromospheric Activity Indicators in Visible Light and Near Infrared
Dan YangA Possible Improvement on Helioseismic Holography
Gottingen September 18ndash22 2017 67
POSTERS
Splinter CCAT
C BruckmannSimulation of Galactic disk PDRs line emission
C KaroumpisPredictions for the redshift 5-9 [CII] intensity distribution
M ZiebartMapping the ISM in nearby galaxies with CCAT-p the case of M51
Splinter E-Science
Milan SpasovicA study of photometric errors on two different photographic plate scans
Moritz HacksteinThe Bochum Galactic Disk Survey
Splinter Exoplanets
Matthias Ammler-von EiffUsing ThNe calibration lamps for the radial velocity method
Jantje FreudenthalPhotodynamical Modelling An Update on Kepler-9
Sascha GrziwaWavelet based filter methods for the detection and characterization oftransiting planets in light curves of space based telescopes
Rene HellerDetectability of Moons Around Extrasolar Planets
Markus HundertmarkThe ROMEREA Microlensing Key Project ndash a window to planets beyondthe snowline
Adrian KaminskiThe Design of the High Resolution Spectrograph CARMENES ndash From theOptical to the Near-IR
68 Annual Meeting of the Astronomische Gesellschaft 2017
POSTERS
Judith KorthOrbital parameter estimation of extrasolar multi-planet systems by TransitTime Variation
Rolf KuiperHydrodynamics and Thermodynamics of super-Earth Planetsrsquo FirstAtmospheres
Maksym LisogorskyiMeasuring the radial velocity of Alpha Centauri
Nicole PawellekIndicators for planets in debris disc systems
Silvia SabottaLooking for Planets around A type stars ndash did we miss 166 of them in theKepler field
Andreas SchweitzerMasses and radii of the CARMENES target stars
Stephan StockTowards Consistent Stellar Parameters for Giant Stars
Splinter HiRes
Anantha ChanumoluModel Based Calibrations of Microlensed Hyperspectral Imager
Adalbert DingPAMIS A Partially Multiplexed High Resolution Imaging Spectrometer
Renard Zelia FerretNew results on supergranulation
Marta Garcia-RivasUmbral sunspot spectra observed with LARS compared to cool stars
Sowmya KrishnamurthyScattering theory of Paschen-Back effect application to Li I 6708 A doublet
Gottingen September 18ndash22 2017 69
POSTERS
Kaori NagashimaComparison between time-distance and ring-diagram helioseismologymeasurements of subsurface convective flows
Paul-Louis PoulierMultiple scattering of acoustic waves
Damien PrzybylskiDissipation of Alfven waves through ion-neutral interactions
Jesper SchouSupergranular Waves Revisited
Nitin YadavDynamics of vortex flows in the lower solar atmosphere
Splinter HotStars
Conny GlaserStellar Laboratories High-precision Atomic Physics with STIS
Michael KnorzerThe enigma of the missing flux in the hot helium-rich white dwarf RE0503-289
Tomer ShenarThe formation of the observed Wolf-Rayet stars in the Magellanic Clouds isnot dominated by mass transfer in binaries
Splinter Populations
Benjamin BischoffPhotometric variability in globular clusters
Noah MolinskiMultiple stellar populations in globular clusters
Sven MartensMass-dependent dynamics in globular clusters
70 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
List of Participants
Ahmad Waheed Universitat InnsbruckAlbert Kinga Max-Planck-Institut fur SonnensystemforschungAmazo-Gomez Eliana Maritza MPI fur SonnensystemforschungAmendola Luca Universitat HeidelbergAmmler-von Eiff Matthias Max-Planck-Institut fur SonnensystemforschungAppenzeller Immo Zentrum fur Astronomie der Universitat HeidelbergArentsen Anke Leibniz-Institut fur Astrophysik PotsdamBaars Jacob Max-Planck-Institut fur RadioastronomieBambach Patrick Max-Planck-Institut fur SonnensystemforschungBartelmann Matthias Zentrum fur Astronomie der Universitat HeidelbergBasu Kaustuv Universitat BonnBellinger Earl Max-Planck-Institut fur SonnensystemforschungBello Gonzalez Nazaret Kiepenheuer-Institut fur Sonnenphysik (KIS)Bender Ralf Max-Planck-Institut fur extraterrestrische PhysikBertoldi Frank Universitat BonnBhasari Anusha Max-Planck-Institut fur SonnensystemforschungBhattacharya Jishnu Tata Institute of Fundamental ResearchBialas Volker Technische Universitat MunchenBirch Aaron Max-Planck-Institut fur SonnensystemforschungBischoff Benjamin Georg-August-Universitat GottingenBlair Jim Cornell UniversityBlex Susanne Ruhr-Universitat BochumBooth Mark Friedrich-Schiller-Universitat JenaBrauer Robert Universitat KielBritzen Silke Max-Planck-Institut fur RadioastronomieBruckmann Christoph Universitat zu KolnBuchbender Christof Universitat zu KolnBucik Radoslav Georg-August-Universitat GottingenBzduskova Lenka Universitat SiegenCairos-Barreto Luz-Marina Georg-August-Universitat GottingenCameron Robert Max-Planck-Institut fur SonnensystemforschungCarmesin Hans-Otto Studienseminar StadeCastro Neves Margarida Zentrum fur Astronomie der Universitat Heidelberg
Gottingen September 18ndash22 2017 71
PARTICIPANTS
Chanumolu Anantha Max-Planck-Institut fur SonnensystemforschungChatzistergos Theodosios Max-Planck-Institut fur SonnensystemforschungChelouche Doron University of HaifaChifu Iulia Max-Planck-Institut fur SonnensystemforschungCiardi Benedetta Max-Planck-Institut fur AstrophysikCilla Antonio Alessandro Max-Planck-Institut fur SonnensystemforschungCioni Maria-Rosa Leibniz-Institut fur Astrophysik Potsdam (AIP)Clough Katy Georg-August-Universitat GottingenCruces Marilyn Max-Planck-Institut fur RadioastronomieCzesla Stefan Universitat HamburgDamiani Cilia Max-Planck-Institut fur SonnensystemforschungDeiters Stefan astronewscom Abenteuer Astronomiede Jong Roelof Leibniz-Institut fur Astrophysik Potsdam (AIP)Dekany Istvan Zentrum fur Astronomie der Universitat HeidelbergDemleitner Markus Zentrum fur Astronomie der Universitat HeidelbergDenker Carsten Leibniz-Institut fur Astrophysik Potsdam (AIP)Dersch Christian Philipps-Universitat MarburgDeters Matthias Hainberg-Gymnasium GottingenDiercke Andrea Leibniz-Institut fur Astrophysik Potsdam (AIP)Ding Adalbert Technische Universitat BerlinDrsquoIsanto Antonio Heidelberg Institute for Theoretical Studies gGmbHDolag Klaus Ludwig-Maximilians-Universitat MunchenDreizler Stefan Georg-August-Universitat GottingenDuvall Thomas Max-Planck-Institut fur SonnensystemforschungEisloffel Jochen Thuringer LandessternwarteElsner Franz Max Planck Institut fur AstrophysikEl Youssoufi Dalal Leibniz-Institut fur Astrophysik Potsdam (AIP)Enke Harry Leibniz-Institut fur Astrophysik Potsdam (AIP)Erler Jens Universitat BonnFabricius Maximilian Max-Planck-Institut fur extraterrestrische PhysikFerret Renard Zelia Max-Planck-Institut fur SonnensystemforschungFichtner Horst Ruhr-Universitat BochumFischer Daniel Abenteuer AstronomieFischer Meike Max-Planck-Institut fur SonnensystemforschungFischer Christian Universitat zu Koln
72 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Fohlmeister Janine Leibniz-Institut fur Astrophysik Potsdam (AIP)Folk Reinhard University LinzFreudenthal Jantje Georg-August-Universitat GottingenFrietsch Ute HAB WolfenbuttelFurbeth Frank Johann Wolfgang Goethe-Universitat Frankfurt am MainGafeira Ricardo Max-Planck-Institut fur SonnensystemforschungGaida Manfred DLRGalkin Anastasia Leibniz-Institut fur Astrophysik Potsdam (AIP)Garcia Rivas Marta Kiepenheuer-Institut fur Sonnenphysik (KIS)Gebhardt Wofgang Universitat RegensburgGebhardt Karl University of TexasGeffert Michael Universitat BonnGeier Stephan Kepler Center der Universitat TubingenGelszinnis Jakob Thuringer LandessternwarteGhaffari Zohreh Ruhr-Universitat BochumGiesen Juergen Vereinigung der Sternfreunde eVGiesers Benjamin Georg-August-Universitat GottingenGizon Laurent Max-Planck-Institut fur SonnensystemforschungGlaser Conny Kepler Center der Universitat TubingenGracia Carpio Javier Max-Planck-Institut fur extraterrestrische PhysikGrandis Sebastian Ludwig-Maximilians-Universitat MunchenGrebel Eva Zentrum fur Astronomie der Universitat HeidelbergGredel Roland Max-Planck-Institut fur AstronomieGrete Philipp Michigan State UniversityGropp Harald Universitat HeidelbergGruner David Universitat PotsdamGrupp Frank Max-Planck-Institut fur extraterrestrische PhysikGrziwa Sascha Rheinisches Institut fur UmweltforschungGuiglion Guillaume Leibniz-Institut fur Astrophysik Potsdam (AIP)Guillet Thomas Zentrum fur Astronomie der Universitat HeidelbergGuse Reiner Ratsgymnasium PeineGuzman Mesa Andrea Universitat InnsbruckHaas Martin Ruhr-Universitat BochumHackstein Moritz Ruhr-Universitat BochumHainich Rainer Universitat Potsdam
Gottingen September 18ndash22 2017 73
PARTICIPANTS
Hammerich Steven Universitat Erlangen-NurnbergHanson Chris Max-Planck-Institut fur SonnensystemforschungHatzes Artie Thuringer LandessternwarteHeber Ulrich Universitat Erlangen-NurnbergHeller Rene Max-Planck-Institut fur SonnensystemforschungHempel Marc Projekttrager DESYHensler Gerhard Universitat WienHerbst Klaus-DieterHerzig Klaus Nicolaus-Copernicus-Planetarium NurnbergHessman Frederic Georg-August-Universitat GottingenHilbert Stefan Ludwig-Maximilians-Universitat MunchenHoch Sebastian Kiepenheuer-Institut fur Sonnenphysik (KIS)Hoeft Matthias Thuringer LandessternwarteHoslashg Erik Copenhagen UniversityHohmann Sascha Universitat SiegenHomeier Derek Zentrum fur Astronomie der Universitat HeidelbergHouben Leon Max-Planck-Institut fur RadioastronomieHoyer Denny Kepler Center der Universitat TubingenHoyle Ben Max-Planck-Institut fur extraterrestrische Physik LMUHuke Philipp Georg-August Universitat GottingenHundertmark Markus Zentrum fur Astronomie der Universitat HeidelbergHusser Tim-Oliver Georg-August-Universitat GottingenHuttemeister Susanne Planetarium BochumHuybrighs Hans Max-Planck-Institut fur SonnensystemforschungIsik Emre Max-Planck-Institut fur SonnensystemforschungIsrael Holger Ludwig-Maximilians-Universitat MunchenJager Klaus Max-Planck-Institut fur AstronomieJahnke Knud Max-Planck-Institut fur AstronomieJeffers Sandra Georg-August-Universitat GottingenJockers Klaus Max-Planck-Institut fur SonnensystemforschungJohnson Erik Georg-August-Universitat GottingenJordan Stefan Zentrum fur Astronomie der Universitat HeidelbergJunkes Norbert Max-Planck-Institut fur RadioastronomieKahil Fatima Max-Planck-Institut fur SonnensystemforschungKaithakkal Anjali Max-Planck-Institut fur Sonnensystemforschung
74 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Kamann Sebastian Liverpool John Moores UniversityKaminski Adrian Zentrum fur Astronomie der Universitat HeidelbergKaper Lex University of AmsterdamKapustka Mateusz University of ZurichKapyla Maarit Max-Planck-Institut fur SonnensystemforschungKaroumpis Christos Universitat BonnKasper Sabine Buro fur TechnikgeschichteKaspi Shai Tel Aviv UniversityKegel Wilhelm H Technische Universitat BerlinKeller Hans-Ulrich Planetarium Stuttgart Universitat StuttgartKelz Andreas Leibniz-Institut fuer Astrophysik Potsdam (AIP)Khanna Ramon Springer Verlag GmbHKirchschlager Florian UCL LondonKitmeridis Panagiotis Universitat HamburgKlar Jochen Leibniz-Institut fur Astrophysik Potsdam (AIP)Klein Matthias Max-Planck-Institut fur extraterrestrische Physik LMUKlein Uli Universitat BonnKlein Randolf USRA - NASA Ames Research CenterKley Wilhelm Kepler Center der Universitat TubingenKlockner Hans-Rainer Max-Planck-Institut fur RadioastronomieKnorzer Michael Kepler Center der Universitat TubingenKoch Andreas Lancaster UniversityKohl Sebastian Universitat HamburgKollatschny Wolfram Georg-August-Universitat GottingenKorth Judith Rheinisches Institut fur UmweltforschungKost Jurgen Buro fur TechnikgeschichteKrabbe Alfred Universitat StuttgartKrafft Fritz Philipps-Universitat MarburgKramer Michael Max-Planck-Institut fur RadioastronomieKratochwil StefanKraus Simon Universitat SiegenKrishnamurthy Sowmya Max-Planck-Institut fur SonnensystemforschungKrivova Natalie Max-Planck-Institut fur SonnensystemforschungKrivov Alexander Friedrich-Schiller-Universitat JenaKruckeberg Stefan Deutsche Forschungsgemeinschaft DFG
Gottingen September 18ndash22 2017 75
PARTICIPANTS
Kruijssen Diederik Zentrum fur Astronomie der Universitat HeidelbergKuemmel Martin Ludwig-Maximilians-Universitat MunchenKuiper Rolf Kepler Center der Universitat TubingenKupfer Thomas California Institute of TechnologyKupper Alexander Universitat zu KolnKuzmychov Oleksii Kiepenheuer-Institut fur Sonnenphysik (KIS)Lagg Andreas Max-Planck-Institut fur SonnensystemforschungLammerzahl Claus Universitat BremenLangbein Thomas Forderkreis Planetarium GottingenLatour Marilyn Universitat Erlangen-NurnbergLeinss Gerhard Humboldt-Universitat zu BerlinLemasle Bertrand Zentrum fur Astronomie der Universitat HeidelbergLemke Dietrich Max-Planck-Institut fur AstronomieLiang Zhi-Chao Max-Planck-Institut fur SonnensystemforschungLisker Thorsten Zentrum fur Astronomie der Universitat HeidelbergLisogorskyi Maksym University of HertfordshireLobling Lisa Kepler Center der Universitat TubingenLorek Sebastian Max-Planck-Institut fur SonnensystemforschungLorenzen Dirk DeutschlandfunkLutz Dieter Max-Planck-Institut fur extraterrestrische PhysikMackebrandt Felix Max-Planck-Institut fur SonnensystemforschungMagnelli Benjamin Universitat BonnMaintz Monika Planetarium MannheimMallonn Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Manso Sainz Rafael Max-Planck-Institut fur SonnensystemforschungMarian Victor Max-Planck-Institut fur AstronomieMarienhagen Maximilian Albert-Schweitzer-Gymnasium ErfurtMarkus-Schnabel Karsten University HamburgMarshall David Max-Planck-Institut fur SonnensystemforschungMartens Sven Georg-August-Universitat GottingenMartin Wilhelm Planetarium WolfsburgMeinel Christoph Universitat RegensburgMeinike Mechthild Planetarium MerseburgMerloni Andrea Max-Planck-Institut fur extraterrestrische PhysikMeusinger Helmut Thuringer Landessternwarte
76 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Meyer-Spasche Rita Max-Planck-Institut fur PlasmaphysikMietas Anthony South African Astronomical ObservatoryMikler Ana Argelander Institut for Astronomy Bonn UniversityMilic Ivan Max-Planck-Institut fur SonnensystemforschungMohr Joseph Ludwig-Maximilians-Universitat MunchenMolinski Noah Georg-August-Universitat GottingenMuhle Stefanie Universitat BonnMuller Volker Leibniz-Institut fur Astrophysik Potsdam (AIP)Muller Ancla Ruhr-Universitat BochumMuller Andreas Technische Universitat MunchenMuller Roland Sternwarte TubingenNagarajan Aarti Universitat BonnNagashima Kaori Max-Planck-Institut fur SonnensystemforschungNarayanamurthy Smitha Max-Planck-Institut fur SonnensystemforschungNemec Nina-Elisabeth Max-Planck-Institut fur SonnensystemforschungNeumann Martin Spektrum der Wissenschaft Verlagsgesellschaft mbHNiemeyer Jens Georg-August-Universitat GottingenNiemeyer Wiltrud Theodor-Heuss-Gymnasium GottingenNikola Thomas Cornell UniversityNolta Michael University of TorontoNorris Charlotte Imperial College LondonOhlert Johannes M Technische Hochschule MittelhessenOshagh Mahmoudreza Georg-August-Universitat GottingenOssendrijver Mathieu Humboldt-Universitat zu BerlinPacaud Florian Universitat BonnPanja Mayukh Max-Planck-Institut fur SonnensystemforschungPannier Lutz Scultetus-Sternwarte GorlitzPawellek Nicole Max-Planck-Institut fur AstronomiePeter Hardi Max-Planck-Institut fur SonnensystemforschungPfau Werner Friedrich-Schiller-Universitat JenaPfuhl Oliver Max-Planck-Institut fur extraterrestrische PhysikPillepich Annalisa Max-Planck-Institut fur AstronomiePoglitsch Albrecht Max-Planck-Institut fur extraterrestrische PhysikPolsterer Kai HITS gGmbHPosch Thomas Universitat Wien
Gottingen September 18ndash22 2017 77
PARTICIPANTS
Possel Markus Haus der AstronomiePoulier Paul-Louis Max-Planck-Institut fur SonnensystemforschungPourabdian Majid Max-Planck-Institut fur SonnensystemforschungPozo Nunez Francisco University of HaifaPrabhu Ameya Max-Planck-Institut fur SonnensystemforschungProbst Thomas Loens-RealschuleProxauf Bastian Max-Planck-Institut fur SonnensystemforschungPrzybylski Damien Max-Planck-Institut fur SonnensystemforschungPuchwein Ewald University of CambridgeQuast Martin Universitat BonnQuatrale Marta Freie Universitat BerlinQuetz Axel Spektrum der Wissenschaft Verlagsgesellschaft mbHQuirrenbach Andreas Zentrum fur Astronomie der Universitat HeidelbergRaack Philipp Universitat SiegenRaap AdriaanRaison Frederic Max-Planck-Institut fur extraterrestrische PhysikRamachandran Varsha Universitat PotsdamRamos Ceja Miriam Elizabeth Universitat BonnRauch Thomas Kepler Center der Universitat TubingenRauch Andreas P Otto-Hahn-Gymnasium GottingenRauer Heike DLR BerlinRedmer Ronald Universitat RostockReffert Sabine Zentrum fur Astronomie der Universitat HeidelbergReichert Uwe Spektrum der Wissenschaft Verlagsgesellschaft mbHReiners Ansgar Georg-August Universitat GottingenReinhold Timo Max-Planck-Institut fur SonnensystemforschungReinsch Klaus Georg-August-Universitat GottingenReiprich Thomas Universitat BonnRempel Matthias National Center for Atmospheric ResearchRengel Miriam Max-Planck-Institut fur SonnensystemforschungRequerey Iker Max-Planck-Institut fur SonnensystemforschungRiechers Dominik Cornell UniversityRieger Frank Zentrum fur Astronomie der Universitat HeidelbergRiethmuller Tino Max-Planck-Institut fur SonnensystemforschungRodenbeck Kai Georg-August-Universitat Gottingen
78 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Rogge Catharina Georg-August-Universitat GottingenRoth Martin Leibniz-Institut fur Astrophysik Potsdam (AIP)Roussos Elias Max-Planck-Institut fur SonnensystemforschungSabotta Silvia Thuringer LandessternwarteSadegi Sepideh Zentrum fur Astronomie der Universitat HeidelbergSanchez Ariel G Max-Planck-Institut fur extraterrestrische PhysikSander Andreas Universitat PotsdamSant Kamal Max-Planck-Institut fur SonnensystemforschungSaranathan Sudharshan Max-Planck-Institut fur SonnensystemforschungSarcander Michael Planetarium Mannheim gGmbHSasaki Manami Universitat Erlangen-NurnbergS A Silva Suzana Technological Institute of Aeronautics (ITA)Saur Joachim Universitat zu KolnSchaaf Reinhold Universitat BonnSchafer Christoph Kepler Center der Universitat TubingenSchaffenroth Veronika Kepler Center der Universitat TubingenSchatz GerdSchilke Peter Universitat zu KolnSchimkat Peter KasselSchindler Jan-Torge University of ArizonaSchlecker Martin Max-Planck-Institut fur AstrophysikSchleicher Helmold Kiepenheuer-Institut fur Sonnenphysik (KIS)Schlichenmaier Rolf Kiepenheuer-Institut fur Sonnenphysik (KIS)Schmidt Fabian Max-Planck-Institut fur AstrophysikSchmidt Wolfram Universitat HamburgSchneider Nicola Universitat zu KolnSchofer Patrick Georg-August-Universitat GottingenSchou Jesper Max-Planck-Institut fur SonnensystemforschungSchrabback Tim Universitat BonnSchrimpf Andreas Philipps-Universitat MarburgSchuh Sonja Max-Planck-Institut fur SonnensystemforschungSchulz Andreas Universitat zu Koln mdash Universitat BonnSchussler Manfred Max-Planck-Institut fur SonnensystemforschungSchwabe Bodo Georg-August-Universitat GottingenSchwarz Oliver Universitat Siegen
Gottingen September 18ndash22 2017 79
PARTICIPANTS
Schweitzer Andreas Universitat HamburgSeidel Gregor Max-Planck-Institut fur AstronomieSelle Andre Gymnasium UslarShapiro Alexander Max-Planck-Institut fur SonnensystemforschungShenar Tomer Universitat PotsdamSimon Robert Universitat zu KolnSing David University of ExeterSiu Tapia Azaymi Litzi Max-Planck-Institut fur SonnensystemforschungSmith Alexis DLR BerlinSobrino Figaredo Catalina Ruhr-Universitat BochumSolanki Sami Max-Planck-Institut fur SonnensystemforschungSorini Daniele Max-Planck-Institut fur AstronomieSpasovic Milan Philipps-Universitat MarburgStaude Jakob Max-Planck-Institut fur AstronomieStecklum Bringfried Thuringer LandessternwarteSteiner Oskar Kiepenheuer-Institut fur Sonnenphysik (KIS)Steinke Martin Universitat zu KolnSteinmetz Matthias Leibniz-Institut fur Astrophysik Potsdam (AIP)Stock Stephan Zentrum fur Astronomie der Universitat HeidelbergStrassmeier Klaus Leibniz-Institut fur Astrophysik Potsdam (AIP)Streicher Ole Leibniz-Institut fur Astrophysik Potsdam (AIP)Stutzki Jurgen Universitat zu KolnTewes Malte Universitat BonnTheis Christian Planetarium MannheimThiele Sabine Lons-Realschule EinbeckThun Daniel Kepler Center der Universitat TubingenTitz-Weider Ruth DLR Institut fur PlanetenforschungTodt Helge Universitat PotsdamTraulsen Iris Leibniz-Institut fur Astrophysik Potsdam (AIP)Trifonov Trifon Max-Planck-Institut fur AstronomieUmland Regina Arbeitskreis Astronomiegeschichte der AGUnruh Yvonne Imperial College LondonUnruh Sandra Universitat Bonnvan Gent Robert Utrecht Universityvan Noort Michiel Max-Planck-Institut fur Sonnensystemforschung
80 Annual Meeting of the Astronomische Gesellschaft 2017
PARTICIPANTS
Vardoulaki Eleni Universitat BonnVeltmaat Jan Georg-August-Universitat GottingenVerbiest Joris Universitat BielefeldVerma Meetu Leibniz-Institut fur Astrophysik Potsdam (AIP)Viviani Mariangela Max-Planck-Institut fur SonnensystemforschungVolk Heinrich Max-Planck-Institut fur Kernphysikvon Berlepsch Regina Leibniz-Institut fur Astrophysik Potsdam (AIP)von Mackensen Ludolf Ehemals Staatliche MuseenWambsganszlig Joachim Zentrum fur Astronomie der Universitat HeidelbergWang Hongrui Physikalisch-Meteorologisches Observatorium DavosWarnecke Jorn Max-Planck-Institut fur SonnensystemforschungWeilbacher Peter Leibniz-Institut fur Astrophysik Potsdam (AIP)Weller Jochen Ludwig-Maximilians-Universitat MunchenWetzstein Michael Max-Planck-Institut fur Extraterrestrische PhysikWicht Johannes Max-Planck-Institut fur SonnensystemforschungWiegelmann Thomas Max-Planck-Institut fur SonnensystemforschungWielebinski Richard Max-Planck-Institut fur RadioastronomieWild Aaron Albert-Schweitzer-Gymnasium ErfurtWinkhaus Michael Bergische Univ Wuppertal Carl-Fuhlrott-GymnasiumWittmann Axel Georg-August-Universitat GottingenWitzke Veronika Max-Planck-Institut fur SonnensystemforschungWolfschmidt Gudrun Universitat HamburgWolthoff Vera Zentrum fur Astronomie der Universitat HeidelbergWu Xian JenaWu Chi Ju Max-Planck-Institut fur SonnensystemforschungWyputta Ulrike Max-Planck-Institut fur RadioastronomieYadav Nitin Max-Planck-Institut fur SonnensystemforschungYang Dan Max-Planck-Institut fur SonnensystemforschungYorke Harold USRA - SOFIA Science CenterZetzl Matthias Georg-August-Universitat GottingenZeuner Franziska Max-Planck-Institut fur SonnensystemforschungZhuleku Juxhin Max-Planck-Institut fur SonnensystemforschungZickgraf Franz-Josef Projekttrager DESYZiebart Monika Universitat zu Koln
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