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Study of the Gaia luminosity function of low-mass stars with the Besançon Galaxy Model

hal.structure.identifierUnivers, Théorie, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) [UTINAM]
hal.structure.identifierOSU-THETA - Observatoire des Sciences de l'Univers - Terre Homme Environnement Temps Astronomie [OSU-THETA]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorRAVINET, Thomas
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorLAGARDE, Nadège
hal.structure.identifierUnivers, Théorie, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) [UTINAM]
hal.structure.identifierOSU-THETA - Observatoire des Sciences de l'Univers - Terre Homme Environnement Temps Astronomie [OSU-THETA]
dc.contributor.authorREYLÉ, Céline
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR_7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorAMARD, Louis
hal.structure.identifierSpace Sciences, Technologies and Astrophysics Research Institute [STAR]
dc.contributor.authorVAN GROOTEL, Valérie
dc.date.issued2023
dc.date.conference2022-07-04
dc.description.abstractEn<p>Context. The Gaia (Early) Data Release 3 provides a large sample of stars with precise parallaxes, distances and photometry from the brightest stars to the stellar-substellar limit. The Gaia Catalogue of Nearby Stars permits to have a complete view of the stellar content of the solar neighbourhood. Aims. Comparing simulations of the stellar content in the solar neighbourhood and the Gaia Catalogue of Nearby Stars, we plan to constrain the Initial Mass Function of field stars down to the stellar-substellar limit. Methods. We construct the luminosity function of the Gaia Catalogue of Nearby Stars in the 2MASS J-band. We compare it to luminosity functions from the literature, and show it reproduces features previously observed. Using the Besan&ccedil;on Galaxy Model, we observe the effects of different litterature Initial Mass Functions on simulated luminosity functions. We compare them with the luminosity function of the Gaia Catalogue of Nearby Stars in the Gaia G-band. Conclusions. We show that published IMFs do not permit to simulate luminosity functions comparable with the GCNS observed one, particularly for faint stars. Our updated model will allow to constrain the IMF of field stars thanks to Gaia data.</p>
dc.language.isoen
dc.publisherZenodo
dc.rights.urihttp://creativecommons.org/licenses/by-nc/
dc.subject.enIMF
dc.subject.enStars
dc.subject.enGaia
dc.subject.enLow mass stars
dc.title.enStudy of the Gaia luminosity function of low-mass stars with the Besançon Galaxy Model
dc.typeCommunication dans un congrès
dc.identifier.doi10.5281/zenodo.7586227
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Astrophysique galactique [astro-ph.GA]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
bordeaux.conference.titleThe 21st Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (CS21)
bordeaux.countryFR
bordeaux.conference.cityToulouse
bordeaux.peerReviewedoui
hal.identifierhal-04277975
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.end2022-07-09
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04277975v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.date=2023&amp;rft.au=RAVINET,%20Thomas&amp;LAGARDE,%20Nad%C3%A8ge&amp;REYL%C3%89,%20C%C3%A9line&amp;AMARD,%20Louis&amp;VAN%20GROOTEL,%20Val%C3%A9rie&amp;rft.genre=unknown


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