Determination of the spectroscopic stellar parameters for 257 field giant stars

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dc.contributor.authorAlves, S.
dc.contributor.authorBenamati, L.
dc.contributor.authorSantos, N. C.
dc.contributor.authorAdibekyan, V. Zh
dc.contributor.authorSousa, S. G.
dc.contributor.authorIsraelian, G.
dc.contributor.authorDe Medeiros, J. R.
dc.contributor.authorLovis, C.
dc.contributor.authorUdry, S.
dc.date.accessioned2024-01-10T13:12:16Z
dc.date.available2024-01-10T13:12:16Z
dc.date.issued2015
dc.description.abstractThe study of stellar parameters of planet-hosting stars, such as metallicity and chemical abundances, help us to understand the theory of planet formation and stellar evolution. Here, we present a catalogue of accurate stellar atmospheric parameters and iron abundances for a sample of 257 K and G field evolved stars that are being surveyed for planets using precise radial-velocity measurements as part of the Coralie programme to search for planets around giants. The analysis was done using a set of high-resolution and high-signal-to-noise Ultraviolet and Visible Echelle Spectrograph spectra. The stellar parameters were derived using Fe I and II ionization and excitation equilibrium methods. To take into account possible effects related to the choice of the lines on the derived parameters, we used three different iron line-list sets in our analysis, and the results differ among themselves by a small factor for most of stars. For those stars with previous literature parameter estimates, we found very good agreement with our own values. In the present catalogue, we are providing new precise spectroscopic measurements of effective temperature, surface gravity, microturbulence, and metallicity for 190 stars for which it has not been found or published in previous articles.
dc.description.funderEuropean Research Council/European Community
dc.description.funderGaia Research for European Astronomy Training (GREATITN) Marie Curie network - European Union
dc.description.funderFCT
dc.description.funderPOPH/FSE (EC) by FEDER funding through the programme 'Programa Operacional de Factores de Competitividade' - COMPETE
dc.description.funderFCT (Portugal)
dc.description.funderCNPq
dc.description.funderFAPERN
dc.description.funderINCT-INEspaco
dc.description.funderCAPES
dc.description.funderCAPES/PDE
dc.description.funderIniciativa Cientifica Milenio
dc.fechaingreso.objetodigital2024-05-02
dc.format.extent17 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stv189
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stv189
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78161
dc.identifier.wosidWOS:000351507000059
dc.information.autorucFísica;Alves S;S/I;243001
dc.issue.numero3
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final2765
dc.pagina.inicio2749
dc.publisherOXFORD UNIV PRESS
dc.revistaMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
dc.rightsacceso restringido
dc.subjectmethods: observational
dc.subjecttechniques: spectroscopic
dc.subjectcatalogues
dc.subjectstars: fundamental parameters
dc.subjectstars: late-type
dc.subjectSUBSTELLAR COMPANION
dc.subjectCHEMICAL ABUNDANCES
dc.subjectPLANET FORMATION
dc.subjectEVOLVED STARS
dc.subjectCOOL GIANTS
dc.subjectI. MODELS
dc.subjectMETALLICITY
dc.subjectEVOLUTION
dc.subjectSAMPLE
dc.subjectLINE
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleDetermination of the spectroscopic stellar parameters for 257 field giant stars
dc.typeartículo
dc.volumen448
sipa.codpersvinculados243001
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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