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Determining stellar atmospheric parameters and chemical abundances of FGK stars with iSpec

hal.structure.identifierM2A 2014
dc.contributor.authorBLANCO-CUARESMA, S.
hal.structure.identifierM2A 2014
dc.contributor.authorSOUBIRAN, C.
dc.contributor.authorHEITER, U.
hal.structure.identifierM2A 2014
dc.contributor.authorJOFRE, P.
dc.date.created2014-07-09
dc.date.issued2014
dc.identifier.issn0004-6361
dc.description.abstractEnContext. An increasing number of high-resolution stellar spectra is available today thanks to many past and ongoing extensive spectroscopic surveys. Consequently, the scientific community needs automatic procedures to derive atmospheric parameters and individual element abundances. Aims. Based on the widely known SPECTRUM code by R. O. Gray, we developed an integrated spectroscopic software framework suitable for the determination of atmospheric parameters (i.e., effective temperature, surface gravity, metallicity) and individual chemical abundances. The code, named iSpec and freely distributed, is written mainly in Python and can be used on different platforms. Methods. iSpec can derive atmospheric parameters by using the synthetic spectral fitting technique and the equivalent width method. We validated the performance of both approaches by developing two different pipelines and analyzing the Gaia FGK benchmark stars spectral library. The analysis was complemented with several tests designed to assess other aspects, such as the interpolation of model atmospheres and the performance with lower quality spectra. Results. We provide a code ready to perform automatic stellar spectral analysis. We successfully assessed the results obtained for FGK stars with high-resolution and high signal-to-noise spectra.
dc.language.isoen
dc.publisherEDP Sciences
dc.title.enDetermining stellar atmospheric parameters and chemical abundances of FGK stars with iSpec
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201423945
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR]
dc.identifier.arxiv1407.2608
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageid.A111
bordeaux.volume569
bordeaux.peerReviewedoui
hal.identifierhal-01023632
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01023632v1
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