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Title：Deficienciesofcurrentphotoionizationmodelsandtheneedforahighspatialresolutionsurvey Speaker：RenbinYan ? Abstract:?Understandingfeedbackofstarformationandchemicalevolutionofgalaxiesrequiresaccurateinterpretationofobservationaldata.However,spatially-resolvedobservationsonkpcscalesfromSDSS-IV/MaNGAandon100pcscalesfromPHANGS-MUSEhaverevealedmanyinconsistencieswithcurrentphotoionizationmodelsofstar-formingregions.Effortsresolvingthesepuzzlesarefurthercomplicatedbysmall-scalespatialcorrelationsbetweendustandionizedgas.Theseproblemswoulddirectlyleadtosystematicsinscalingrelationssuchasmass-metallicityrelationsanditssecondarydependences.Iwilldiscusstheresultsofouranalysesinthesedirections,whichcouldonlybeunderstoodbynewspectroscopyobservationsresolvingsub-parsecorfewparsecscales.Tothisend,wearedevelopingtheAMASE-Psurvey.Asapilotprogramofafuturelargerscalesurvey,AMASE-Pwillbeawide-areaintegralfieldspectroscopysurveystudyingtheionizedgasanddustintheMilkyWayandnearbygalaxieswithaspatialresolutionofsubparsecto10sofparsecs,andaspectralresolutionclosetoR~15,000.Itwillincludebothanorthernsurveyandasouthernsurvey,coverhundredsofsquaredegreesofskyintheMilkyWay,LMC,SMC,M31,M33,andotherlocalgroupgalaxies.Itisexpectedtostartobservingwithinayear.Iwilldescribetheprogressoftheprojectanditsscienceprospects. ? Bio: Prof.RenbinYangothisbachelordegreefromPekingUniversityandhisPhDfromUniversityofCaliforniaatBerkeley.Afterthat,hewasapostdoctoralscholarattheUniversityofTorontoandNewYorkUniversity.In2012,hejoinedthefacultyattheUniversityofKentuckyandwastenuredin2018.In2021,hejoinedtheChineseUniversityofHongKongandwasawardedthetitleofGlobalSTEMScholar.Prof.Yan
astro.sjtu.edu.cn 2025-03-21
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parsec.com.cn 2024-11-26