J/A+A/517/A3ivo://CDS.VizieR/J/A+A/517/A3doi:10.26093/cds/vizier.35170003CDSCatanzaro G.Frasca A.Molenda-Zakowicz J.Marilli E.2022-06-30T06:24:18Z2010-07-23T14:29:42ZCDS support team

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

cds-question@unistra.frearly-type-starschemical-abundancesspectroscopyvisible-astronomymedium-band-photometryStellar pulsation offers a unique opportunity to constrain the intrinsic parameters of stars and to unveil their inner structure. Kepler satellite is collecting a huge amount of data of unprecedent photometric precision, that will allow us to test theory and obtain a very precise tomography of stellar interiors. Aiming at providing the stars' fundamental parameters (Teff, logg, vsini, and luminosity) which are needed for computing asteroseismic models and interpreting Kepler data, we report spectroscopic observations of 23 early-type Kepler asteroseismic targets and 13 other stars in the Kepler field, but not selected to be observed. The cross-correlation with template spectra was used for measuring the radial velocity with the aim of identifying non-single stars. Spectral synthesis has been performed in order to derive the stellar parameters for our target stars. State-of-art LTE atmospheric models have been computed. For all the stars of our sample, we derive the radial velocity, Teff, logg, vsini, and luminosities. Further, for 12 stars, we perform a detailed abundance analysis of 20 species; for 16, we could derive only the [Fe/H] ratio. A spectral classification has been also performed for 17 stars in the sample. We found two double-lined spectroscopic binaries, HIP96299 and HIP98551, the former of which is an already known eclipsing binary, and two single-lined spectroscopic binaries, HIP97254 and HIP97724. We also report two suspected spectroscopic binaries, HIP92637 and HIP96762, and the detection of a possible variability of the radial velocity of HIP96277. Two of our program stars turn out to be chemically peculiar, namely HIP93941, which we classify as B2 He-weak, and HIP96210, which we classify as B6Mn. Finally, we find that HIP93522, HIP93941, HIP93943, HIP96210 and HIP96762, are very slow rotators (vsini<20km/s) which makes them very interesting and promising targets for an asteroseismic modeling.2010A&A...517A...3Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/517/A3CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/239 : The Hipparcos and Tycho Catalogues (ESA 1997)V/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/A+A/517/A3https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/517/A3http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/517/A3https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/517/A3https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/517/A3http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/517/A3GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/517/A3/table3 (Stellar parameters derived for our stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/517/A3/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/517/A3/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/517/A3/table3?GETtext/xml+votable180.050000true282.000352548.54221970.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/517/A36/14583 14731-14733 14739 14748 14752 14762 14771-14772 14781 14817 14912-14913 14922 14928 14934 14940 14960 14966 15043 15060-15061 15126 15131 15135 15146 15161 15175 15179-15180 151823.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/517/A3?format=asciiOpticaldefaultJ/A+A/517/A3/table3Stellar parameters derived for our starse_SpT? Spectral type errorstat.errorintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_HIP[Kn] K: Kepler asteroseismic targets or n: stars not selected as Kepler targetsmeta.notecharHIPHipparcos number (I/239)meta.id;meta.mainintprimarym_HIP[AB] Multiplicity index in HIPmeta.code.multipcharKIC? Kepler Input Catalogue numbermeta.idintnullableVmag? V magnitudemagphot.mag;em.opt.VfloatnullablePlx? Hipparcos parallaxmaspos.parallaxfloatnullablee_Plx? Parallax errormasstat.error;pos.parallaxfloatnullableSpTMK spectral typesrc.spTypecharTeff? Effective temperatureKphys.temperature.effectiveintnullablee_Teff? Effective temperature errorKstat.error;phys.temperature.effectiveintnullablelogg? Surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg? Surface gravity errorlog(cm.s**-2)stat.errorfloatnullablevsini? Projected rotational velocitykm/sphys.veloc.rotatintnullableHJDReduced Heliocentric Julian Day (HJD-2400000)dtime.epoch;pos.heliocentricdoubleRVRadial Velocitykm/sphys.veloc;pos.heliocentricfloate_RVRadial Velocity errorkm/sstat.errorfloatlogL? LuminositysolLumphys.luminosityfloatnullablee_logL? Luminosity error left (lower limit)solLumstat.errorfloatnullableE_logL? Luminosity error right (upper limit)solLumstat.error;stat.maxfloatnullableFileNameName of the FITS spectra in subdirectory spmeta.id;meta.fitscharFITSDownload the spectrum (multispec FITS)meta.ref.urlcharHIP2Display the HIP-2 data (Catr. I/311)meta.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/A+A/517/A3/table2Stromgren photometry for 14 starsdm0Distance modulusmagphot.mag.distModfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPHipparcos number (I/239)meta.id;meta.mainintVmagV magnitudemagphot.mag;em.opt.Vfloate_VmagV magnitude errormagstat.error;phot.magfloatb-yb-y color indexmagphot.color;em.opt.B;em.opt.Vfloate_b-yb-y color index errormagstat.error;phot.color;em.opt.Bfloatm1m1 color indexmagphot.colorfloate_m1m1 color index errormagstat.errorfloatc1c1 color indexmagphot.colorfloate_c1c1 color index errormagstat.errorfloatbetaHbeta indexmagphot.colorfloate_betaHbeta index errormagstat.errorfloatTeffEffective TemperatureKphys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloatVMAGAbsolute V magnitudemagphys.magAbsfloatJ/A+A/517/A3/table4Chemical abundances for 12 starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIPHipparcos number (I/239)meta.id;meta.mainintZAtomic numbermeta.idintXAtomic symbolphys.atmol.elementcharAbunAbundancelog(Sun)phys.abundfloate_AbunAbundance errorlog(Sun)stat.errorfloat