OutlineforLecture1:CoursegoalsCoursetopics

- anyextra?Coursestructure

- lectures- optionalworkshops–topics

Coursegrading- homeworks- journaldiscussion- courseproject(breakdown)- gradedivision–vote

Courseschedule- Lectures&workshops–fine-tuneworkshopschedule- Knownmissingdaysandmake-upclasses–identify- Otherimportantevents–CASSseminar&journalclub

QUESTIONSContextImportantpatterns

- distributionofstars&gasinMW,othergalaxies(includingkinematics)- brightnesses&colors–HRdiagram- chemicalabundancepatterns- otherstarrelatedstuff–supernovae(types),planetarynebulae,SNR

WhatweknowfromSun- apparentsize->actualsizefromAUmeasurementfromVenusorbit- mass(orGM)fromplanetaryorbits,laterGReffects- temperature&composition–fromspectroscopy,indicatesprimarilyplasma- luminosity–fromsolarconstant,distance- averagedensity-estimatecore=>mustbegas- interiorpressure–hydrostaticequilibrium- interiortemperature–nonrelativisticplasma- spotpatterns–rotation,B-field- helioseismology–internalstructure,energytransport,rotationalstructure- other–neutrinoemission,abundancepatternsrelativetoplanets,planets

themselvesgiveimportantinformation(age!)ScalingupviaHRdiagram

- absolutebrightness(typicallyV&parallaxneeded)->luminosity->4πR2sT4- color&spectrum->T=>R(linesofconstantradius)

o interestingoutliers–supergiants,whitedwarfs- starcounts–ageinregion(highdensity=longphase)- differentHRdiagramsfordifferentsystems–time,compositionarefactors- asteroseismology–Keplercannowdothisformanystars

Physics223GraduateStellarStructure

22September2016

h9p://pono.ucsd.edu/~adam/teaching/phys223/

Whatarethegoalsofthiscourse?

•  AdetailedexaminaFonofthestructureandphysicalprocessesgoverningnormalstars

•  FamiliarizaFonwiththetoolsandresourcesforconducFonstellarastrophysicsresearch

•  FamiliarizaFonwiththecurrentbodyofresearchandoutstandingproblems

•  DevelopyourprofessionalscienFficskills:literatureresearch,quanFtaFveanalysis,esFmaFon,programming,scienFficwriFngandpresentaFon

Topics•  FundamentalproperFesofstarsandcosmologicalcontext;•  Star&planetformaFon•  EquaFonsofstellarstructure&polytropemodels;•  ProperFesofgas,plasma,degenerateand“photonic”

states;•  EnergygeneraFonandnucleosynthesis;•  EnergytransportviaradiaFon,conducFonandconvecFon;•  Pre-MainSequence,MainSequenceandPost-Main

SequenceevoluFon•  Degeneratestars(browndwarfs,whitedwarfs,neutron

stars)•  [maybe]TheSunasastar;•  [maybe]StellarmagneFcacFvity.

Arethereothertopicsyouwouldliketodiscuss?

Classschedule

•  TuTh12:30-2pmLectureSERF383•  We[1:30-3pm]OpFonalWorkshopSERF383–  Python,MESA,MonteCarloMethods,LaTeX,literatureresearch,datavisualizaFon,scienFficwriFng,effecFvepresentaFons

•  Classmakeupdayis[]–  Th9/29&Tu11/8willneedtoberescheduled

•  Otherimportantevents:–  CASSSeminarWe4-5pminSERF383–  CASSJournalClubFr12-1pminSERF383(withpizza!)

Assignments•  XX%4homeworkassignments–  biweekly,3-5hours– Willincludeprogramming

•  XX%ClassJournalDiscussion–  discussionleadinclass–  1-2pagesummaryofarFclewriteup

•  XX%CourseProject–  Proposal–  10-15pagepaper–  10-15minutepresentaFonduringfinalsweek

•  XX%ClassparFcipaFon

h9p://mesa.sourceforge.net/

Assignments•  XX%4homeworkassignments–  biweekly,3-5hours– Willincludeprogramming

•  XX%ClassJournalDiscussion–  discussionleadinclass–  1-2pagesummaryofarFclewriteup

•  XX%CourseProject–  Proposal–  10-15pagepaper–  10-15minutepresentaFonduringfinalsweek

•  XX%ClassparFcipaFon

ClassJournalDiscussions

Assignments•  XX%4homeworkassignments–  biweekly,3-5hours– Willincludeprogramming

•  XX%ClassJournalDiscussion–  discussionleadinclass–  1-2pagesummaryofarFclewriteup

•  XX%CourseProject–  Proposal(LaTeX)–  10-15pagepaper(LaTeXAASJournalstyle)–  10-15minutepresentaFonduringfinalsweek

•  XX%ClassparFcipaFon

Assignments•  [20-40]%4homeworkassignments–  biweekly,3-5hours– Willincludeprogramming

•  [0-20]%ClassJournalDiscussion–  discussionleadinclass–  1-2pagesummaryofarFclewriteup

•  [30-70]%CourseProject–  Proposal(LaTeX)–  10-15pagepaper(LaTeXAASJournalstyle)–  10-15minutepresentaFonduringfinalsweek

•  [0-10]%ClassparFcipaFon

QUESTIONS?

PhotobyJohnLemieuxhttps://www.flickr.com/photos/newdimensionfilms/4726096945

Russell1914(PopularAstronomy.22,275)

15

color

brightne

ss

M13GlobularCluster7kpcaway11.7Gyrold

Asplundetal.(2009,ARA&A,47,481-522)