J/MNRAS/450/2764ivo://CDS.VizieR/J/MNRAS/450/2764doi:10.26093/cds/vizier.74502764CDSNiemczura E.Murphy S.J.Smalley B.Uytterhoeven K.Pigulski A.,Lehmann H.Bowman D.M.Catanzaro G.Van Aarle E.Bloemen S.,Briquet M.De Cat P.Drobek D.Eyer L.Gameiro J.F.S.Gorlova N.,Kaminski K.Lampens P.Marcos-Arenal P.Papics P.I.Vandenbussche B.,Van Winckel H.Steslicki M.Fagas M.2024-08-14T20:21:49Z2016-02-03T16:03:40ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frpeculiar-variable-starschemical-abundancesThe Kepler space mission provided near-continuous and high-precision photometry of about 207000 stars, which can be used for asteroseismology. However, for successful seismic modeling it is equally important to have accurate stellar physical parameters. Therefore, supplementary ground-based data are needed. We report the results of the analysis of high-resolution spectroscopic data of A- and F-type stars from the Kepler field, which were obtained with the HERMES spectrograph on the Mercator telescope. We determined spectral types, atmospheric parameters and chemical abundances for a sample of 117 stars. Hydrogen Balmer, FeI, and FeII lines were used to derive effective temperatures, surface gravities, and microturbulent velocities. We determined chemical abundances and projected rotational velocities using a spectrum synthesis technique. The atmospheric parameters obtained were compared with those from the Kepler Input Catalogue (KIC), confirming that the KIC effective temperatures are underestimated for A stars. Effective temperatures calculated by spectral energy distribution fitting are in good agreement with those determined from the spectral line analysis. The analysed sample comprises stars with approximately solar chemical abundances, as well as chemically peculiar stars of the Am, Ap, and {lambda} Boo types. The distribution of the projected rotational velocity, vsini, is typical for A and F stars and ranges from 8 to about 280km/s, with a mean of 134km/s.2015MNRAS.450.2764Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/450/2764CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/450/2764https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/450/2764http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/450/2764https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/450/2764https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/450/2764http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/450/2764GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/450/2764/table3 (*Atmospheric parameters of investigated Kepler A- and F-type stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/450/2764/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/450/2764/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/450/2764/table3?GETtext/xml+votable180.050000true291.422291936.97127610.0055555555555555565/3646 3732 6/14578 14582-14583 14730-14732 14734-14735 14746 14753-14756 14758-14759 14761-14763 14769-14770 14772 14775 14777 14779 14781 14794-14795 14817-14819 14824 14915 14918 14922 14934-14936 14938-14939 14945 14948-14949 14951 14956 14958 14962-14963 14965 14970-14972 15061 15104-15105 15107-15108 15112-15114 15117-15118 15120-15121 15125-15128 15132-15134 15138-15141 15148-15149 15154-15155 15169 15172 15200https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/450/2764?format=asciidefaultJ/MNRAS/450/2764/table2Journal of spectroscopic observations and the derived spectral classesSpType2Spectral type obtained in this work (1)src.spTypecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKIC numbermeta.id;meta.mainintn_KIC[*] * indicates a note in notes.dat filemeta.notecharObs.dateDate of observationtime.epochcharVmag? V magnitudemagphot.mag;em.opt.VfloatnullableSpType1Spectral type from the literaturesrc.spTypecharNsp? Number of available spectrameta.numberintnullableNotesAdditional information taken from spectra and Kepler data (2)meta.notecharJ/MNRAS/450/2764/table3*Atmospheric parameters of investigated Kepler A- and F-type starsKICKIC Numbermeta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTeff? Effective temperature (from KIC)Kphys.temperature.effectiveintnullablelogg? Surface gravity (from KIC)log(cm.s**-2)phys.gravityfloatnullableE(B-V)? Interstellar redenning (from KIC)magphot.color.excessfloatnullablelogeps(Fe)? Fe abundance (from KIC)phys.abund.FefloatnullableE(B-V)2? Interstellar redenning (from NaD & SED)magphot.color.excessfloatnullableTeff2Effective temperature (from NaD & SED)Kphys.temperature.effectiveinte_Teff2rms uncertainty on Teff2Kstat.errorintTeff3Effective temperature (from metal and Balmer lines)Kphys.temperature.effectiveinte_Teff3rms uncertainty on Teff3Kstat.errorintlogg3Surface gravity (from metal and Balmer lines)log(cm.s**-2)phys.gravityfloate_logg3rms uncertainty on logg3log(cm.s**-2)stat.errorfloatvt3Microturbulent velocity (from metal and Balmer lines)km/sphys.velocfloate_vt3rms uncertainty on vtkm/sstat.errorfloatvsini3Rotational velocity (from metal and Balmer lines)km/sphys.veloc.rotatinte_vsini3rms uncertainty on vsini3km/sstat.errorintlogeps(Fe)3Fe abundance (from metal and Balmer lines)phys.abund.Fefloate_logeps(Fe)3rms uncertainty on logeps(Fe)3stat.errorfloatAbundDisplay the abundancesmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/450/2764/table4Abundances of chemical elements for a sample of analysed starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKIC numbermeta.id;meta.mainintElElementphys.atmol.elementcharAbund? Mean abundancephys.abund;stat.meanfloatnullablee_Abund? Standard deviation of Abundstat.errorfloatnullableN? Number of analysed partsmeta.numberintnullableJ/MNRAS/450/2764/notesNotesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKICKIC numbermeta.id;meta.mainintNoteText of the notemeta.notechar