Afficher la notice abrégée

hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
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.identifierCentre de recherche cerveau et cognition [CERCO]
dc.contributor.authorGIRARD, Pascal
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
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]
dc.contributor.authorSOUBIRAN, C.
dc.contributor.editorEdited by F. Casoli
dc.contributor.editorT. Contini
dc.contributor.editorJ.M. Hameury and L. Pagani.
dc.date.issued2005
dc.date.conference2005
dc.description.abstractEnWe present the results of our investigation of three samples kinematically representative of the thin and thick disks and the Hercules stream using the catalogue of Soubiran & Girard (2005). We have observed abundance trends and age distribution of each component. Our results show that the two disks are chemically well separated, they overlap greatly in metallicity and both show parallel decreasing trends of alpha elements with increasing metallicity, in the interval -0.80 < [Fe/H] < -0.30. The thick disk is clearly older than the thin disk with a tentative evidence of an Age-Metallicity Relation over 2-3 Gyr and a hiatus in star formation before the formation of the thin disk. In order to improve the statistics on the disk's abundance trends, we have developed an automatic code, TGMET?, to determine (Teff, logg, [Fe/H], [?/Fe]) for thousands of stellar spectra available in spectroscopic archives. We have assessed the performances of the algorithm for 350 spectra of stars being part of the abundance catalogue.
dc.language.isoen
dc.publisherPublished by EdP-Sciences, Conference Series, 2005
dc.source.title2005sf2a.conf..593G - SF2A-2005: Semaine de l'Astrophysique Francaise, meeting held in Strasbourg, France, June 27 - July 1, 2005, Edited by F. Casoli, T. Contini, J.M. Hameury and L. Pagani. Published by EdP-Sciences, Conference Series, 2005, p. 593
dc.subject.enstars: abundances
dc.subject.enstars: kinematics
dc.subject.enGalaxy: disk
dc.subject.enGalaxy: abundances
dc.subject.enGalaxy: kinematics and dynamics
dc.subject.encatalogs
dc.subject.enMethods: numerical
dc.title.enElemental abundances as a function of kinematics in the Milky Way's disk
dc.typeCommunication dans un congrès
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
dc.identifier.arxivastro-ph/0601472
bordeaux.page593
bordeaux.countryFR
bordeaux.title.proceeding2005sf2a.conf..593G - SF2A-2005: Semaine de l'Astrophysique Francaise, meeting held in Strasbourg, France, June 27 - July 1, 2005, Edited by F. Casoli, T. Contini, J.M. Hameury and L. Pagani. Published by EdP-Sciences, Conference Series, 2005, p. 593
bordeaux.conference.cityStrasbourg
bordeaux.peerReviewedoui
hal.identifierhal-00017405
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00017405v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.btitle=2005sf2a.conf..593G%20-%20SF2A-2005:%20Semaine%20de%20l'Astrophysique%20Francaise,%20meeting%20held%20in%20Strasbourg,%20France,%20June%2027%20-%20July%201,%202005,%20Ed&amp;rft.date=2005&amp;rft.spage=593&amp;rft.epage=593&amp;rft.au=GIRARD,%20Pascal&amp;SOUBIRAN,%20C.&amp;rft.genre=unknown


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée