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Gaia Data Release 3: Analysis of the Gaia BP/RP spectra using the General Stellar Parameterizer from Photometry

hal.structure.identifierMax Planck Institute for Astronomy [MPIA]
dc.contributor.authorANDRAE, R.
hal.structure.identifierMax-Planck Institute for Astronomy, Konigstuhl 17, D-69117, Heidelberg, Germany
dc.contributor.authorFOUESNEAU, M.
hal.structure.identifierINAF - Osservatorio Astronomico di Padova [OAPD]
dc.contributor.authorSORDO, R.
hal.structure.identifierMax-Planck-Institut für Astronomie [MPIA]
dc.contributor.authorBAILER-JONES, C. A. L.
dc.contributor.authorDHARMAWARDENA, T. E.
hal.structure.identifierMax Planck Institute for Astronomy [MPIA]
dc.contributor.authorRYBIZKI, J.
hal.structure.identifierInstitute of Astronomy, University of Cambridge [IoA]
dc.contributor.authorDE ANGELI, F.
hal.structure.identifierNiels Bohr Institute [Copenhagen] [NBI]
dc.contributor.authorLINDSTRØM, H. E. P.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorMARSHALL, D. J.
hal.structure.identifierIstituto Nazionale di Astrofisica, Torino, Italy
dc.contributor.authorDRIMMEL, R.
hal.structure.identifierDepartment of Astronomy and Space Physics [Uppsala]
dc.contributor.authorKORN, A. J.
dc.contributor.authorSOUBIRAN, C.
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
hal.structure.identifierUniversité Sciences et Technologies - Bordeaux 1 [UB]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
dc.contributor.authorBROUILLET, N.
hal.structure.identifierM2A 2018
dc.contributor.authorCASAMIQUELA, L.
dc.contributor.authorRIX, H. -W.
dc.contributor.authorARAMBURU, A. Abreu
hal.structure.identifierUNIVERSITY OF HULL IECS GBR
dc.contributor.authorÁLVAREZ, M. A.
hal.structure.identifierUniversity of Groningen [Groningen]
dc.contributor.authorBAKKER, J.
hal.structure.identifierNational Observatory of Athens [NOA]
dc.contributor.authorBELLAS-VELIDIS, I.
hal.structure.identifierLaboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides [CASSIOPEE]
dc.contributor.authorBIJAOUI, A.
dc.contributor.authorBRUGALETTA, E.
dc.contributor.authorBURLACU, A.
dc.contributor.authorCARBALLO, R.
dc.contributor.authorCHAOUL, L.
dc.contributor.authorCHIAVASSA, Andrea
dc.contributor.authorCONTURSI, G.
dc.contributor.authorCOOPER, W. J.
dc.contributor.authorCREEVEY, O. L.
dc.contributor.authorDAFONTE, C.
dc.contributor.authorDAPERGOLAS, A.
dc.contributor.authorDE LAVERNY, P.
dc.contributor.authorDELCHAMBRE, L.
dc.contributor.authorDEMOUCHY, C.
dc.contributor.authorEDVARDSSON, B.
dc.contributor.authorFRÉMAT, Y.
dc.contributor.authorGARABATO, D.
dc.contributor.authorGARCÍA-LARIO, P.
dc.contributor.authorGARCÍA-TORRES, M.
dc.contributor.authorGAVEL, A.
dc.contributor.authorGOMEZ, A.
dc.contributor.authorGONZÁLEZ-SANTAMARÍA, I.
dc.contributor.authorHATZIDIMITRIOU, D.
dc.contributor.authorHEITER, U.
dc.contributor.authorPICCOLO, A. Jean-Antoine
dc.contributor.authorKONTIZAS, M.
dc.contributor.authorKORDOPATIS, G.
dc.contributor.authorLANZAFAME, A. C.
hal.structure.identifierLaboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics [LESIA]
hal.structure.identifierInstitut de Physique de Rennes [IPR]
dc.contributor.authorLEBRETON, Y.
dc.contributor.authorLICATA, E. L.
dc.contributor.authorLIVANOU, E.
dc.contributor.authorLOBEL, A.
dc.contributor.authorLORCA, A.
dc.contributor.authorROMEO, A. Magdaleno
dc.contributor.authorMANTEIGA, M.
dc.contributor.authorMAROCCO, F.
dc.contributor.authorMARY, N.
dc.contributor.authorNICOLAS, C.
dc.contributor.authorORDENOVIC, C.
dc.contributor.authorPAILLER, F.
dc.contributor.authorPALICIO, P. A.
dc.contributor.authorPALLAS-QUINTELA, L.
dc.contributor.authorPANEM, C.
dc.contributor.authorPICHON, B.
dc.contributor.authorPOGGIO, E.
dc.contributor.authorRECIO-BLANCO, A.
dc.contributor.authorRICLET, F.
dc.contributor.authorROBIN, C.
dc.contributor.authorSANTOVEÑA, R.
dc.contributor.authorSARRO, L. M.
dc.contributor.authorSCHULTHEIS, M. S.
dc.contributor.authorSEGOL, M.
dc.contributor.authorSILVELO, A.
dc.contributor.authorSLEZAK, I.
dc.contributor.authorSMART, R. L.
dc.contributor.authorSÜVEGES, M.
dc.contributor.authorTHÉVENIN, F.
dc.contributor.authorELIPE, G. Torralba
dc.contributor.authorULLA, A.
dc.contributor.authorUTRILLA, E.
dc.contributor.authorVALLENARI, A.
dc.contributor.authorVAN DILLEN, E.
dc.contributor.authorZHAO, H.
dc.contributor.authorZOREC, J.
dc.date.issued2023
dc.identifier.issn0004-6361
dc.description.abstractEnWe present the General Stellar Parameterizer from Photometry (GSP-Phot), which is part of the astrophysical parameters inference system (Apsis). GSP-Phot is designed to produce a homogeneous catalogue of parameters for hundreds of millions of single non-variable stars based on their astrometry, photometry, and low-resolution BP/RP spectra. These parameters are effective temperature, surface gravity, metallicity, absolute $M_G$ magnitude, radius, distance, and extinction for each star. GSP-Phot uses a Bayesian forward-modelling approach to simultaneously fit the BP/RP spectrum, parallax, and apparent $G$ magnitude. A major design feature of GSP-Phot is the use of the apparent flux levels of BP/RP spectra to derive, in combination with isochrone models, tight observational constraints on radii and distances. We carefully validate the uncertainty estimates by exploiting repeat Gaia observations of the same source. The data release includes GSP-Phot results for 471 million sources with $G<19$. Typical differences to literature values are 110 K for $T_{\rm eff}$ and 0.2-0.25 for $\log g$, but these depend strongly on data quality. In particular, GSP-Phot results are significantly better for stars with good parallax measurements ($\varpi/\sigma_varpi>20$), mostly within 2kpc. Metallicity estimates exhibit substantial biases compared to literature values and are only useful at a qualitative level. However, we provide an empirical calibration of our metallicity estimates that largely removes these biases. Extinctions $A_0$ and $A_{\rm BP}$ show typical differences from reference values of 0.07-0.09 mag. MCMC samples of the parameters are also available for 95% of the sources. GSP-Phot provides a homogeneous catalogue of stellar parameters, distances, and extinctions that can be used for various purposes, such as sample selections (OB stars, red giants, solar analogues etc.).
dc.language.isoen
dc.publisherEDP Sciences
dc.subject.enstars: fundamental parameters -methods: data analysis statistical surveys catalogs
dc.subject.enstars: fundamental parameters -methods: data analysis
dc.subject.enstatistical
dc.subject.ensurveys
dc.subject.encatalogs
dc.subject.enstars: fundamental parameters -methods: data analysis statistical surveys catalogs
dc.title.enGaia Data Release 3: Analysis of the Gaia BP/RP spectra using the General Stellar Parameterizer from Photometry
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/202243462
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
dc.identifier.arxiv2206.06138
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.volume674
bordeaux.issueA27
bordeaux.peerReviewedoui
hal.identifierhal-04072563
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04072563v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&amp;rft.date=2023&amp;rft.volume=674&amp;rft.issue=A27&amp;rft.eissn=0004-6361&amp;rft.issn=0004-6361&amp;rft.au=ANDRAE,%20R.&amp;FOUESNEAU,%20M.&amp;SORDO,%20R.&amp;BAILER-JONES,%20C.%20A.%20L.&amp;DHARMAWARDENA,%20T.%20E.&amp;rft.genre=article


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