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A new procedure for defining a homogenous line-list for solar-type stars

dc.contributor.authorSOUSA, S. G.
hal.structure.identifierCentro de Astrofísica da Universidade do Porto [CAUP]
dc.contributor.authorSANTOS, N. C.
dc.contributor.authorADIBEKYAN, V.
dc.contributor.authorDELGADO-MENA, E.
dc.contributor.authorTABERNERO, H. M.
dc.contributor.authorHERNÁNDEZ, J. I. González
dc.contributor.authorMONTES, D.
dc.contributor.authorSMILJANIC, R.
hal.structure.identifierDepartment of Astronomy and Space Physics [Uppsala]
dc.contributor.authorKORN, A. J.
dc.contributor.authorBERGEMANN, M.
hal.structure.identifierM2A 2014
dc.contributor.authorSOUBIRAN, C.
dc.contributor.authorMIKOLATIS, S.
dc.date.created2013-11-27
dc.date.issued2014
dc.identifier.issn0004-6361
dc.description.abstractEnContext. The homogenization of the stellar parameters is an important goal for large observational spectroscopic surveys, but it is very difficult to achieve it because of the diversity of the spectroscopic analysis methods used within a survey, such as spectrum synthesis and the equivalent width method. To solve this problem, constraints to the spectroscopic analysis can be set, such as the use of a common line-list. Aims. We present a procedure for selecting the best spectral lines from a given input line-list, which then allows us to derive accurate stellar parameters with the equivalent width method. Methods. To select the lines, we used four very well known benchmark stars, for which we have high-quality spectra. From an initial line-list, the equivalent width of each individual line was automatically measured for each benchmark star using ARES, then we performed a local thermodynamic equilibrium analysis with MOOG to compute individual abundances. The results allowed us to choose the best lines which give consistent abundance values for all the benchmark stars from which we then created a final line-list. Results. To verify its consistency, the compiled final line-list was tested for a small sample of stars. These stars were selected to cover different ranges in the parameter space for FGK stars. We show that the obtained parameters agree well with previously determined values.
dc.language.isoen
dc.publisherEDP Sciences
dc.title.enA new procedure for defining a homogenous line-list for solar-type stars
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201322290
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.arxiv1311.7169
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageid.A21
bordeaux.volume561
bordeaux.peerReviewedoui
hal.identifierhal-00912581
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00912581v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&rft.date=2014&rft.volume=561&rft.spage=id.A21&rft.epage=id.A21&rft.eissn=0004-6361&rft.issn=0004-6361&rft.au=SOUSA,%20S.%20G.&SANTOS,%20N.%20C.&ADIBEKYAN,%20V.&DELGADO-MENA,%20E.&TABERNERO,%20H.%20M.&rft.genre=article


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