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Analysis of stellar populations with large empirical libraries at high spectral resolution

hal.structure.identifierCentre de Recherche Astrophysique de Lyon [CRAL]
dc.contributor.authorPRUGNIEL, Philippe
hal.structure.identifierCentre de Recherche Astrophysique de Lyon [CRAL]
hal.structure.identifierСофийски университет = Sofia University
dc.contributor.authorKOLEVA, Mina
hal.structure.identifierСофийски университет = Sofia University
dc.contributor.authorOCVIRK, Pierre
hal.structure.identifierDépartement d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée [DAPNIA]
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
dc.contributor.authorLE BORGNE, Damien
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
hal.structure.identifierLaboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]
hal.structure.identifierLaboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
dc.contributor.authorSOUBIRAN, C.
dc.date.issued2007
dc.date.conference2006
dc.description.abstractEnThe stellar population models dramatically progressed with the arrival of large and complete libraries, ELODIE, CFLIB (=Indo-US) and MILES at a relatively high resolution. We show that the quality of the fits is not anymore limited by the size of the stellar libraries in a large range of ages (0.1 to 10 Gyrs) and metallicities (-2 to +0.4 dex). The main limitations of the empirical stellar libraries are (i) the coverage of the parameters space (lack of hot stars of low metallicity), (ii) the precision and homogeneity of the atmospheric parameters and (iii) the non-resolution of individual element abundances (in particular [$\alpha$/Fe]). Detailed abundance measurements in the large libraries, and usage of theoretical libraries are probably the next steps, and we show that a combination between an empirical (ELODIE) and a theoretical library (Coelho et al. 2005) immediately improves the modeling of ($\alpha$-enhanced) globular clusters.
dc.language.isoen
dc.publisherCambridge University Press,
dc.source.title2007IAUS..241...68P - Proceedings of the International Astronomical Union
dc.title.enAnalysis of stellar populations with large empirical libraries at high spectral resolution
dc.typeCommunication dans un congrès
dc.identifier.doi10.1017/S1743921307007454
dc.subject.halPhysique [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/0703130
bordeaux.page68-72
bordeaux.volume241
bordeaux.issue2
bordeaux.conference.titleStellar Populations as Building Blocks of Galaxies
bordeaux.countryES
bordeaux.title.proceeding2007IAUS..241...68P - Proceedings of the International Astronomical Union
bordeaux.conference.cityLa Palma - Tenerife
bordeaux.peerReviewedoui
hal.identifierhal-00256917
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2006-12-16
hal.popularnon
hal.audienceNon spécifiée
dc.subject.esgalaxies: abundances
dc.subject.esglobular clusters: general
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00256917v1
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