J/A+A/664/A78ivo://CDS.VizieR/J/A+A/664/A78doi:10.26093/cds/vizier.36640078CDSFrasca A.Molenda-Zakowicz J.Alonso-Santiago J.Catanzaro G.De Cat P.,Fu J.N.Zong W.Wang J.X.Cang T.Wang J.T.2024-08-05T20:00:50Z2022-08-12T12:38:24ZCDS support team

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

cds-question@unistra.frsurveysline-intensitieschemical-abundanceseffective-temperatureradial-velocityvisible-astronomyIn this work we present the results of our analysis of 16300 medium-resolution LAMOST spectra of late-type stars in the Kepler field aimed at the determination of the stellar parameters, activity level, lithium atmospheric content and binarity. We have used a purposely developed version of the code ROTFIT for the determination of the stellar parameters by adopting a grid of spectra of real stars. We provide a catalog with the atmospheric parameters (Teff, logg, and [Fe/H]), radial velocity (RV), and projected rotation velocity (vsini). For cool stars (Teff<6500K), we also calculated the H-alpha and LiI-6708 equivalent width, which are important indicators of chromospheric activity and evolutionary stage, respectively. We have derived the RV and atmospheric parameters for 14300 spectra of 7443 stars. Literature data (mainly from high- or medium-resolution spectra) were used for a quality control of the results and to assess the accuracy of the derived parameters. The Teff and logg values are in good agreement with the literature, although their distribution displays some clustering effect, which can be the result of the non-uniform distribution of the templates in the parameter space. The most relevant differences are found for [Fe/H], which appears to be overestimated for metal poor stars; this is also likely caused by the template grid. We propose a relation to correct the [Fe/H] values derived with ROTFIT. We were able to identify interesting objects, such as double-lined binaries, stars with variable RV, lithium-rich giants, and emission-line objects. Based on the H-halpha flux, we found 327 active stars. We could detect the LiI-6708 line and measure its equivalent width for 1657 stars both giants and on the main sequence. Regarding the latter, we performed a discrete age classification based on their atmospheric lithium abundance and the upper envelopes of a few open clusters. Among the giants we found 195 Li-rich stars, 161 are reported here for the first time. No relationship is found between stellar rotation and lithium abundance, which allows us to rule out merger scenarios as the predominant ones to explain the enrichment of Li in our sample. The fraction of Li-rich giants, about 4%, is higher than expected.2022A&A...664A..78Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/664/A78CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)V/156 : LAMOST DR7 catalogs (Luo+, 2019)J/A+A/594/A39 : LAMOST-Kepler parameters & activity indicators (Frasca+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/664/A78https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/664/A78http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/664/A78https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/664/A78https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/664/A78http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/664/A78GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/664/A78/table2 (Final stellar parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A78/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A78/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A78/table2?GETtext/xml+votable180.050000true280.925942.657298890.005555555555555556Cone search capability for table J/A+A/664/A78/table3 (Activity indicators)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A78/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A78/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A78/table3?GETtext/xml+votable180.050000true282.0237119441.964408890.005555555555555556Cone search capability for table J/A+A/664/A78/table4 (Lithium equivalent width and abundance)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A78/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A78/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A78/table4?GETtext/xml+votable180.050000true281.1749342.476238060.005555555555555556Cone search capability for table J/A+A/664/A78/tablec2 (Stellar parameters for individual red-arm spectra)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A78/tablec2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A78/tablec2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A78/tablec2?GETtext/xml+votable180.050000true292.8633469443.034586110.005555555555555556Cone search capability for table J/A+A/664/A78/tablec3 (Stellar parameters for individual blue-arm spectra)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A78/tablec3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A78/tablec3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A78/tablec3?GETtext/xml+votable180.050000true292.8633469443.034586110.0055555555555555564/934 944 5/3691 3694-3695 3706 3731 3733-3735 3740 3742 3780-3782 3784-3785 3788 6/14590-14591 14762-14763 14775 14818-14819 14822 14828 14830 14922-14923 14929-14931 14964 14966 14972 15040 15044 15132 15144 15168-15169https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/664/A78?format=asciiOpticaldefaultJ/A+A/664/A78/table2Final stellar parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainKICKepler Input Catalog designation (KICNNNNNNNN) (1)meta.id;meta.maincharprimaryTargetLAMOST designation (JHHMMSS.ss+DDMMSS.s) (1)meta.idcharNspNumber of spectrameta.numberintSimbadNameSimbad column added by the CDSmeta.idcharnullableTeffEffective temperatureKphys.temperature.effectiveinte_TeffEffective temperature errorKstat.error;phys.temperature.effectiveintloggLogarithm of surface gravitylog(cm.s**-2)phys.gravityfloate_loggError on logarithm of surface gravitylog(cm.s**-2)stat.errorfloat[Fe/H]Iron abundance relative to the Sunlog(Sun)phys.abund.Fefloate_[Fe/H]Error on iron abundance relative to the Sunlog(Sun)stat.error;phys.abund.Fefloatl_vsiniLimit flag on vsinimeta.code.error;phys.veloc.rotatcharvsiniProjected rotational velocitykm/sphys.veloc.rotatfloate_vsini? Projected rotational velocity errorkm/sstat.error;phys.veloc.rotatfloatnullableSpTypeSpectral type in MK or HDsrc.spTypecharS/NSignal-to-noise ratiostat.snrintArmSpectral arm used (2)meta.id;instrcharRemarksRemarks (3)meta.notecharMoreindicates activity indicators and/or lithium equivalent width and abundance in tables 3 and 4meta.ref.urlcharJ/A+A/664/A78/table3Activity indicatorsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTargetTarget designation (JHHMMSS.ss+DDMMSS.s)meta.idcharKICKepler Input Catalog number, KICNNNNNNNmeta.id;meta.maincharRAJ2000Right Ascention (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainTeffEffective temperatureKphys.temperature.effectiveinte_TeffEffective temperature errorKstat.error;phys.temperature.effectiveintloggLogarithm of surface gravitylog(cm.s**-2)phys.gravityfloate_loggError on logarithm of surface gravitylog(cm.s**-2)stat.errorfloatEWHaH{alpha} equivalent width0.1nmspect.line.eqWidthfloate_EWHaH{alpha} equivalent width error0.1nmstat.errorfloatFHaH{alpha} fluxmW.m**-2phot.flux;em.line.Halphadoublee_FHaH{alpha} flux errormW.m**-2stat.errordoubleR'HaLuminosity ratio LH{alpha}/Lbolphys.luminosity;arith.ratiofloatb_R'HaLower value of R'Ha considering the errorsmeta.notefloatB_R'HaUpper value of R'Ha considering the errorsmeta.notefloatJ/A+A/664/A78/table4Lithium equivalent width and abundancee_loggError on logarithm of surface gravitylog(cm.s**-2)stat.errorfloatl_A(Li)Limit flag on A(Li)meta.code.errorcharA(Li)? Lithium abundancephys.abundfloatnullablee_A(Li)Lower error on A(Li)stat.errorfloatE_A(Li)Upper error on A(Li)stat.error;stat.maxfloatl_EW(Li)Limit flag on EW(Li)meta.code.errorcharEW(Li)Lithium equivalent width0.1pmspect.line.eqWidthinte_EW(Li)rms uncertainty on EW(Li)0.1pmstat.errorintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTargetTarget designation (JHHMMSS.ss+DDMMSS.s)meta.idcharKICKepler Input Catalog number (KICNNNNNNN)meta.id;meta.maincharRAJ2000Right Ascention (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainTeffEffective temperatureKphys.temperature.effectiveinte_TeffEffective temperature errorKstat.error;phys.temperature.effectiveintloggLogarithm of surface gravitylog(cm.s**-2)phys.gravityfloatClassAge class (1)src.classcharJ/A+A/664/A78/tablec2Stellar parameters for individual red-arm spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTargetTarget designation (JHHMMSS.ss+DDMMSS.s)meta.idcharKICKepler Input Catalog number (KICNNNNNNN)meta.id;meta.maincharRAJ2000Right Ascention (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000)degpos.eq.dec;meta.mainindexedHJDReduced Heliocentric Julian day (HJD-2400000)dtime.epoch;pos.heliocentricdoubleindexedSpLAMOST Spectrum namemeta.idcharS/N? Signal-to-noise ratio in the red armstat.snr;src.morph.paramfloatnullableTeff? Effective temperatureKphys.temperature.effectiveintnullablee_Teff? Effective temperature errorKstat.error;phys.temperature.effectiveintnullablelogg? Logarithm of surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg? Error on logarithm of surface gravitylog(cm.s**-2)stat.errorfloatnullable[Fe/H]? Iron abundance relative to the Sunlog(Sun)phys.abund.Fefloatnullablee_[Fe/H]? Error on iron abundance relative to the Sunlog(Sun)stat.error;phys.abund.Fefloatnullablevsini? Projected rotational velocitykm/sphys.veloc.rotatfloatnullablee_vsini? Projected rotational velocity errorkm/sstat.error;phys.veloc.rotatfloatnullableHRV? Heliocentric Radial Velocitykm/sspect.dopplerVeloc;pos.heliocentricdoublenullablee_HRV? Heliocentric Radial Velocity errorkm/sstat.errorfloatnullableHRVcorr? Corrected Heliocentric Radial Velocitykm/sspect.dopplerVeloc;pos.heliocentricdoublenullableSpTypeSpectral type in MK or HDsrc.spTypecharRemarksRemarks (1)meta.notecharJ/A+A/664/A78/tablec3Stellar parameters for individual blue-arm spectrae_[Fe/H]? Error on iron abundance relative to the Sunlog(Sun)stat.error;phys.abund.Fefloatnullablevsini? Projected rotational velocitykm/sphys.veloc.rotatfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTargetTarget designation (JHHMMSS.ss+DDMMSS.s)meta.idcharKICKepler Input Catalog number (KICNNNNNNN)meta.id;meta.maincharRAJ2000Right Ascention (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000)degpos.eq.dec;meta.mainindexedHJDReduced Heliocentric Julian day (HJD-2400000)dtime.epoch;pos.heliocentricdoubleindexedSpLAMOST Spectrum namemeta.idcharS/N? Signal-to-noise ratio in the red armstat.snr;src.morph.paramfloatnullableTeff? Effective temperatureKphys.temperature.effectiveintnullablee_Teff? Effective temperature errorKstat.error;phys.temperature.effectiveintnullablelogg? Logarithm of surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg? Error on logarithm of surface gravitylog(cm.s**-2)stat.errorfloatnullable[Fe/H]? Iron abundance relative to the Sunlog(Sun)phys.abund.Fefloatnullablee_vsini? Projected rotational velocity errorkm/sstat.error;phys.veloc.rotatfloatnullableHRV? Heliocentric Radial Velocitykm/sspect.dopplerVeloc;pos.heliocentricdoublenullablee_HRV? Heliocentric Radial Velocity errorkm/sstat.errorfloatnullableHRVcorr? Corrected Heliocentric Radial Velocitykm/sspect.dopplerVeloc;pos.heliocentricdoublenullableSpTypeSpectral type in MK or HDsrc.spTypecharRemarksRemarks (1)meta.notechar