Studying the process of galaxy formation in situ. Formation & Evolution of Galaxies Stars, Gas & Dark Matter, Chemical & Dynamical Evolution. Color Magnitude Diagrams & LFs of resolved galaxies. Elemental abundances of stars & gas. - PowerPoint PPT Presentation
Formation & Evolution of Galaxies Stars, Gas & Dark Matter, Chemical & Dynamical Evolution Color Magnitude Diagrams & LFs of resolved galaxies Distribution & kynematics of gas in disks & halos - galaxy rotation curves Elemental abundances of stars & gas Search & study of the relics of galaxy formation Chemical evolutio n models The Cosmic Evolution The Cosmic Evolution of Baryons of Baryons The Cosmic Evolution The Cosmic Evolution of galactic Structures of galactic Structures ying the process of galaxy formation ying the process of galaxy formation in in
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Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
Color Magnitude Diagrams & LFs of resolved galaxies
Distribution & kynematics of gas in disks & halos - galaxy rotation curves
Elemental abundances of stars & gas
Search & study of the relics of galaxy formation
Chemical evolution models
The Cosmic Evolution The Cosmic Evolution of Baryonsof Baryons
The Cosmic Evolution The Cosmic Evolution of galactic Structuresof galactic Structures
Studying the process of galaxy formation Studying the process of galaxy formation in situin situ
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
Staff : M. Bellazzini (AR), L. Federici (AR), F. Fusi Pecci (AO), L. Origlia (AR), R. Sancisi (AO), M. Tosi (AO)
Post Doc: E. Pancino, D. Romano
PhD Students: L. Angeretti, F. Fraternali, S. Galleti, L. Monaco, A. Sollima
Technical Support: P. Montegriffo, E. Rossetti
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
A short panoramic viewA short panoramic view
A few examplesA few examples
Some highlightsSome highlights
Star Formation Histories from synthetic CMDsStar Formation Histories from synthetic CMDs
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
The most widely used The most widely used method to infer SFH method to infer SFH
of resolved galaxie of resolved galaxie waswas
invented hereinvented hereTosi et al. 1991Tosi et al. 1991
M. Tosi (OAB), L. Angeretti (Uni.Bo), L.Greggio (OAPd), F.Annibali (SISSA), A. Aloisi (STScI), C. Leitherer (STScI)
e.g. NGC1705 BCD at 5.1 MpcHST-WFPC2/NIC2 data
Deep, high-res photometry allows to resolve stellar populations and derive CMDs. From them, the method provides SF history and IMF.
7 6 5 4 3 2 1 0
Spatially resolved SFH in the local UniverseSpatially resolved SFH in the local Universe
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
The disk and the halo of M31 with HSTThe disk and the halo of M31 with HST
Tomography Tomography of the of the stellar stellar
contentcontent
S. GalletiS. GalletiL. FedericiL. Federici
F. Fusi PecciF. Fusi PecciC. CacciariC. Cacciari
M. BellazziniM. Bellazzini
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
CChemical enrichment by recursive bursts of SFhemical enrichment by recursive bursts of SF
Gas abundancesGas abundancesfrom X-ray spectrafrom X-ray spectra
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
Omega Cen: the relic of a galactic building block?Omega Cen: the relic of a galactic building block?Omega Cen:the Rosetta Stone of chemical evolutionOmega Cen:the Rosetta Stone of chemical evolution
SOFI:SOFI:NIR – MR NIR – MR
spectroscopyspectroscopy
UVESUVESOptical Hi ResOptical Hi ResSpectroscopySpectroscopy
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
Omega Cen:the Rosetta Stone of chemical evolutionOmega Cen:the Rosetta Stone of chemical evolution
Flames & UVESFlames & UVES
130 SGB stars130 SGB starsat low res.at low res.
More than 700More than 700RGB starsRGB stars
at high res.at high res.
E. PancinoE. PancinoM. BellazziniM. Bellazzini
L. OrigliaL. OrigliaA. SollimaA. Sollima
F. Ferraro (Un.)F. Ferraro (Un.)
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
Models of chemical evolution in galaxiesModels of chemical evolution in galaxiesThe key interpretative toolThe key interpretative toolfor the observations of the for the observations of the
chemical enrichmentchemical enrichment
An example: An example: primordial nucleosynthesisprimordial nucleosynthesis
The predictions of our models on The predictions of our models on Deuterium Deuterium
verified by WMAPverified by WMAP
Comparisons of this Comparisons of this kind will soon be kind will soon be
possible also in nearby possible also in nearby external galaxiesexternal galaxies(UVES-Flames)(UVES-Flames)
M. Tosi, D. RomanoM. Tosi, D. Romano
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
The relics of the hyerarchical merging processThe relics of the hyerarchical merging processLocal detailed test of the CDM cosmology Local detailed test of the CDM cosmology
The Sagittarius Dwarf galaxy
M. Bellazzini, L. Monaco, E. Pancino; M. Bellazzini, L. Monaco, E. Pancino; F. Ferraro, R. IbataF. Ferraro, R. Ibata
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
The Sagittarius Dwarf galaxy
WFI photometry of a 1 deg X 1 deg fieldWFI photometry of a 1 deg X 1 deg field(500000 stars): SFH & structure(500000 stars): SFH & structure
The Main BodyThe Main BodySGR: a nucleated galaxy at 25 kpcSGR: a nucleated galaxy at 25 kpc
VLT-Flames spectra of moreVLT-Flames spectra of morethan 300 stars: abundance & dynamicsthan 300 stars: abundance & dynamics
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
Sgr Dwarf galaxy: The Stream
Globular Clusters in the Globular Clusters in the Sgr StreamSgr Stream
The contribution of Sgr to the The contribution of Sgr to the assembly of the assembly of the Galactic HaloGalactic Halo
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
The relics of the hyerarchical merging process Local detailed test of the CDM cosmologyThe relics of the hyerarchical merging process Local detailed test of the CDM cosmology The discovery of the Canis Major galaxy:The discovery of the Canis Major galaxy:
The relic of an in-plane accretion onto the MW The relic of an in-plane accretion onto the MW
Overdensity of M giantsOverdensity of M giantsSubstructureSubstructure
of GCsof GCs
CMD from CMD from archive dataarchive data
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
The discovery of the Canis Major galaxy:The discovery of the Canis Major galaxy:The relic of an in-plane accretion onto the MW The relic of an in-plane accretion onto the MW
Kynematics & SFH: constraints to galaxy
formation models
Stream Kynematics:detailed contraints on the
Galactic potential
DM cusps & streams:impact on neutralino search experiments
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
Gas kynematics & Gas kynematics & the structure of the structure of
gaseous discs gaseous discs
NGC 6946NGC 6946
HVC in HVC in external galaxiesexternal galaxies
Gas disc & velocity fieldsGas disc & velocity fields
Velocity Velocity curves curves
&&Mass Mass
profilesprofiles
Substructures in gaseous discsSubstructures in gaseous discs
R. SancisiF. Fraternali
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
TELESCOPE TIMETELESCOPE TIME 2000-20032000-2003
ESO others: ESO others: 9 nights9 nights
ESO VLT: ESO VLT: 21 nights21 nights
TNG: TNG: 21 21 nightsnights
Westerbork: Westerbork: 40 X 12h40 X 12h
HST: HST: 177 orbits177 orbits
Keck: Keck: 3 nights3 nights
Formation & Evolution of GalaxiesStars, Gas & Dark Matter, Chemical & Dynamical Evolution
