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Gaia Data Release 3: Analysis of RVS spectra using the General Stellar Parametriser from spectroscopy

hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorRECIO-BLANCO, A.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorDE LAVERNY, P.
hal.structure.identifierObservatoire de la Côte d'Azur [OCA]
dc.contributor.authorPALICIO, P. A.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorKORDOPATIS, G.
hal.structure.identifierUniversidade da Coruña
dc.contributor.authorÁLVAREZ, M. A.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorSCHULTHEIS, M.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorCONTURSI, G.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorZHAO, H.
dc.contributor.authorTORRALBA ELIPE, G.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorORDENOVIC, C.
hal.structure.identifierUniversidade da Coruña
dc.contributor.authorMANTEIGA, M.
hal.structure.identifierUniversidade da Coruña
dc.contributor.authorDAFONTE, C.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorORESHINA-SLEZAK, I.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorBIJAOUI, A.
hal.structure.identifierRoyal Observatory of Belgium = Observatoire Royal de Belgique [ROB]
dc.contributor.authorFRÉMAT, Y.
hal.structure.identifierMullard Space Science Laboratory [MSSL]
dc.contributor.authorSEABROKE, G.
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorPAILLER, F.
hal.structure.identifierObservatoire de la Côte d'Azur [OCA]
dc.contributor.authorSPITONI, E.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorPOGGIO, E.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorCREEVEY, O. L.
dc.contributor.authorABREU ARAMBURU, A.
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorACCART, S.
hal.structure.identifierMax Planck Institute for Astronomy [MPIA]
dc.contributor.authorANDRAE, R.
hal.structure.identifierMax-Planck-Institut für Astronomie [MPIA]
dc.contributor.authorBAILER-JONES, C. A. L.
dc.contributor.authorBELLAS-VELIDIS, I.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorBROUILLET, N.
hal.structure.identifierINAF - Osservatorio Astrofisico di Catania [OACT]
dc.contributor.authorBRUGALETTA, E.
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorBURLACU, A.
dc.contributor.authorCARBALLO, R.
hal.structure.identifierM2A 2018
dc.contributor.authorCASAMIQUELA, L.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorCHIAVASSA, A.
dc.contributor.authorCOOPER, W. J.
dc.contributor.authorDAPERGOLAS, A.
hal.structure.identifierInstitut d'Astrophysique et de Géophysique [Liège]
dc.contributor.authorDELCHAMBRE, L.
dc.contributor.authorDHARMAWARDENA, T. E.
dc.contributor.authorDRIMMEL, R.
hal.structure.identifierUppsala University
dc.contributor.authorEDVARDSSON, B.
hal.structure.identifierMax-Planck Institute for Astronomy, Konigstuhl 17, D-69117, Heidelberg, Germany
dc.contributor.authorFOUESNEAU, M.
hal.structure.identifierUniversidade da Coruña
dc.contributor.authorGARABATO, D.
hal.structure.identifierISO Data Centre [ESA - Espagne]
hal.structure.identifierHerschel Science Centre [ESA Espagne]
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.authorJEAN-ANTOINE PICCOLO, A.
dc.contributor.authorKONTIZAS, M.
dc.contributor.authorKORN, A. J.
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.authorLE FUSTEC, Y.
dc.contributor.authorLICATA, E. L.
dc.contributor.authorLINDSTROM, H. E. P.
dc.contributor.authorLIVANOU, E.
dc.contributor.authorLOBEL, A.
dc.contributor.authorLORCA, A.
dc.contributor.authorMAGDALENO ROMEO, A.
dc.contributor.authorMAROCCO, F.
dc.contributor.authorMARSHALL, D. J.
dc.contributor.authorMARY, N.
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorNICOLAS, C.
dc.contributor.authorPALLAS-QUINTELA, L.
dc.contributor.authorPANEM, C.
hal.structure.identifierJoseph Louis LAGRANGE [LAGRANGE]
dc.contributor.authorPICHON, B.
hal.structure.identifierCentre National d'Études Spatiales [Toulouse] [CNES]
dc.contributor.authorRICLET, F.
hal.structure.identifierThales Services
dc.contributor.authorROBIN, C.
dc.contributor.authorRYBIZKI, J.
dc.contributor.authorSANTOVEÑA, R.
dc.contributor.authorSILVELO, A.
dc.contributor.authorSMART, R. L.
dc.contributor.authorSARRO, L. M.
dc.contributor.authorSORDO, R.
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorSOUBIRAN, C.
dc.contributor.authorSÜVEGES, M.
hal.structure.identifierUniversidade de Vigo
dc.contributor.authorULLA, A.
dc.contributor.authorVALLENARI, A.
dc.contributor.authorZOREC, J.
dc.contributor.authorUTRILLA, E.
dc.contributor.authorBAKKER, J.
dc.date.issued2023
dc.identifier.issn0004-6361
dc.description.abstractEnThe chemo-physical parametrisation of stellar spectra is essential for understanding the nature and evolution of stars and of Galactic stellar populations. Gaia DR3 contains the parametrisation of RVS data performed by the General Stellar Parametriser-spectroscopy, module. Here we describe the parametrisation of the first 34 months of RVS observations. GSP-spec estimates the chemo-physical parameters from combined RVS spectra of single stars. The main analysis workflow described here, MatisseGauguin, is based on projection and optimisation methods and provides the stellar atmospheric parameters; the individual chemical abundances of N, Mg, Si, S, Ca, Ti, Cr, FeI, FeII, Ni, Zr, Ce and Nd; the differential equivalent width of a cyanogen line; and the parameters of a DIB feature. Another workflow, based on an artificial neural network, provides a second set of atmospheric parameters that are useful for classification control. We implement a detailed quality flag chain considering different error sources. With about 5.6 million stars, the Gaia DR3 GSP-spec all-sky catalogue is the largest compilation of stellar chemo-physical parameters ever published and the first one from space data. Internal and external biases have been studied taking into account the implemented flags. In some cases, simple calibrations with low degree polynomials are suggested. The homogeneity and quality of the estimated parameters enables chemo-dynamical studies of Galactic stellar populations, interstellar extinction studies from individual spectra, and clear constraints on stellar evolution models. We highly recommend that users adopt the provided quality flags for scientific exploitation . The Gaia DR3 GSP-spec catalogue is a major step in the scientific exploration of Milky Way stellar populations, confirming the Gaia promise of a new Galactic vision (abridged).
dc.language.isoen
dc.publisherEDP Sciences
dc.subject.enStars: fundamental parameters
dc.subject.enStars: abundances
dc.subject.enISM: lines and bands
dc.subject.enGalaxy: stellar content
dc.subject.enGalaxy: abundances
dc.subject.enMethods: data analysis
dc.subject.enAstrophysics - Astrophysics of Galaxies
dc.subject.enAstrophysics - Solar and Stellar Astrophysics
dc.subject.enStars: fundamental parameters
dc.subject.enStars: fundamental parameters
dc.subject.enStars: fundamental parameters
dc.title.enGaia Data Release 3: Analysis of RVS spectra using the General Stellar Parametriser from spectroscopy
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/202243750
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.identifier.arxiv2206.05541
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageA29
bordeaux.volume674
bordeaux.peerReviewedoui
hal.identifierhal-04072650
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04072650v1
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