J/ApJ/855/115ivo://CDS.VizieR/J/ApJ/855/115doi:10.26093/cds/vizier.18550115CDSBerger T.A.Howard A.W.Boesgaard A.M.2019-02-27T07:16:09Z2019-02-21T13:16:19ZCDS support team

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

cds-question@unistra.frchemical-abundancesmultiple-starsline-intensitiesexoplanetsvisible-astronomyThe lithium doublet at 6708{AA} provides an age diagnostic for main sequence FGK dwarfs. We measured the abundance of lithium in 1305 stars with detected transiting planets from the Kepler mission using high-resolution spectroscopy. Our catalog of lithium measurements from this sample has a range of abundance from A(Li)=3.11+/-0.07 to an upper limit of -0.84dex. For a magnitude-limited sample that comprises 960 of the 1305 stars, our Keck-HIRES spectra have a median signal-to-noise ratio of 45 per pixel at ~6700{AA} with spectral resolution {lambda}/{Delta}{lambda}=R=55000. We identify 80 young stars that have A(Li) values greater than the Hyades at their respective effective temperatures; these stars are younger than ~650Myr, the approximate age of the Hyades. We then compare the distribution of A(Li) with planet size, multiplicity, orbital period, and insolation flux. We find larger planets preferentially in younger systems, with an A-D two-sided test p-value=0.002, a>3{sigma} confidence that the older and younger planet samples do not come from the same parent distribution. This is consistent with planet inflation/photoevaporation at early ages. The other planet parameters (Kepler planet multiplicity, orbital period, and insolation flux) are uncorrelated with age.2018ApJ...855..115Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/855/115CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/A+A/331/81 : Hyades membership (Perryman+ 1998)J/ApJ/724/154 : Lithium abundances in stars with planets (Ghezzi+, 2010)J/MNRAS/403/1368 : Li abundances+vsini for star-planet syst. (Gonzalez+, 2010)J/other/Sci/330.653 : Detected planets in the Eta-Earth Survey (Howard+, 2010)J/other/Sci/337.1511 : Kepler-47 transits (Orosz+, 2012)J/ApJ/756/46 : Lithium abundances in HIP stars (Ramirez+, 2012)J/A+A/562/A92 : Li abundance in solar analogues (Delgado Mena+, 2014)J/ApJS/211/2 : Revised properties of Q1-16 Kepler targets (Huber+, 2014)J/A+A/576/A69 : Li abundances in F stars (Delgado Mena+, 2015)J/A+A/576/A89 : O abundances from HARPS in F-G stars (Bertran de Lis+, 2015)J/MNRAS/446/1020 : Parent stars of extrasolar planets. XIV. (Gonzalez+, 2015)J/MNRAS/462/1563 : Li to Eu in stars with & without planets (Mishenina+, 2016)J/ApJS/224/12 : Kepler planetary candidates. VII. 48-month (Coughlin+, 2016)J/AJ/154/107 : California-Kepler Survey (CKS). I. (Petigura+, 2017)J/AJ/154/108 : California-Kepler Survey (CKS). II. (Johnson+, 2017)J/AJ/154/109 : California-Kepler Survey (CKS). III. Radii (Fulton+, 2017)http://exoplanetarchive.ipac.caltech.edu/ : NASA exoplanet archivehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/855/115https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/855/115http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/855/115https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/855/115https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/855/115http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/855/115GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/855/115/table1 (Pipeline results for Kepler planet host stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/855/115/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/855/115/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/855/115/table1?GETtext/xml+votable180.050000true286.808491449.31641420.0055555555555555564/922 923 933 934 935 945 946 5/3645 3646 3647 3683 3704 3706 3729 3730 3731 3776 3777 3778 3788 3789 3792 6/14567 14573 14575 14578 14579 14730 14731 14738 14744 14746 14750 14751 14792 14794 14795 14828 14830 14914 14915 15040 15041 15043 15044 15045 15057 15059 15060 15061 15062 15116 15118 15119 15160 15172 15173 15174 15176 15178 15200 15232https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/855/115?format=asciiOpticaldefaultJ/ApJ/855/115/table1Pipeline results for Kepler planet host starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsObservation Code (1)meta.id;obscharDateObservation Date, UT, YYYY-MM-DDtime.epoch;obsnullableS1: star younger than the Hyades (link to table 2)meta.ref.urlintnullableKOI[1/7605] Kepler Object of Interest identifiermeta.id;meta.mainintprimaryPl1: planet younger than the Hyades (link to table 3)meta.ref.urlintnullableKpmag[7.8/16.6] Magnitude in the Kepler bandpass from the NASA Exoplanet Archivephot.mag;em.optfloatS/N[5/223] Spectrum signal-to-noisestat.snrintTeff[4618/6656] Effective temperature (G1)Kphys.temperature.effectiveintlogg[2.9/4.8] logarithm of surface gravity (G1)log(cm.s**-2)phys.gravityfloat[Fe/H][-0.7/0.5] Metallicity (G1)phys.abund.ZfloatVt[0.3/2] Microturbulent velocity (G2)km/sphys.velocfloatEW(Li)[0.8/163] Equivalent width, Li, in milli-Angstroms units0.1pmmeta.unit;spect.line.eqWidthfloate_EW(Li)[0.9/50] Uncertainty in EW(Li)0.1pmstat.errorfloatA(Li)[-0.9/3.2] Lithium Abundance (12+log(Li/H))phys.abundfloate_A(Li)[0.05/0.5]? Uncertainty in A(Li) (2)stat.errorfloatnullableP17Display data from Petigura+ 2017, J/AJ/154/107meta.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/ApJ/855/115/table2Stars younger than the HyadesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKOI[1/6759] Kepler Object of Interest identifiermeta.id;meta.mainintS/N[13/181] Spectrum signal-to-noisestat.snrintTeff[4760/6656] Effective temperature (G1)Kphys.temperature.effectiveintlogg[2.9/4.8] logarithm of surface gravity (G1)log(cm.s**-2)phys.gravityfloat[Fe/H][-0.5/0.5] Metallicity (G1)phys.abund.ZfloatVt[0.4/2] Microturbulent velocity (G2)km/sphys.velocfloatEW(Li)[7.1/163] Equivalent width, Li, in milli-Angstroms units0.1pmmeta.unit;spect.line.eqWidthfloate_EW(Li)[1.6/24] Uncertainty in EW(Li)0.1pmstat.errorfloatA(Li)[0.4/3.2] Lithium Abundance (12+log(Li/H))phys.abundfloate_A(Li)[0.05/0.4] Uncertainty in A(Li) (1)stat.errorfloatdA(Li)Hy[0/4.4] delta Lithium abundance relative to the Hyadesphys.abundfloatJ/ApJ/855/115/table3Planets younger than the Hyadesf_KOISystem/Planet flags (1)meta.codecharPer[1.1/1064.3] Planet orbital perioddtime.periodfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintKOI[1/5119] Kepler Object of Interest identifiermeta.id.parentintTeff[4760/6532] Effective temperature (2)Kphys.temperature.effectiveintEW(Li)[9/163] Equivalent width, Li, milli-Angstroms0.1pmspect.line.eqWidthfloate_EW(Li)[1.6/24] Uncertainty in EW(Li)0.1pmstat.errorfloatA(Li)[0.4/3.2] Lithium Abundance (12+log(Li/H))phys.abundfloate_A(Li)[0.05/0.4] Uncertainty in A(Li)stat.errorfloatdA(Li)Hy[0.02/1.8] delta Lithium abundance relative to the Hyadesphys.abundfloatPl[1/4] KOI planet numbermeta.id.part;meta.mainintRp[0.6/39] Planet Radius, Earth units(6.3781x10+6m)phys.size.radiusfloatE_Rp[0.1/62] Upper uncertainty on Rp(6.3781x10+6m)stat.error;stat.maxfloate_Rp[0.1/62] Lower uncertainty on Rp(6.3781x10+6m)stat.errorfloatE_Per[0] Upper uncertainty on Per (always "0.0")dstat.error;stat.maxfloate_Per[0] Lower uncertainty on Per (always "0.0")dstat.errorfloatFp[0.7/7867] Planet insolation flux, Earth fluxEarthphot.flux;arith.ratiofloatE_Fp[0.1/4771] Upper uncertainty on FpEarthstat.error;stat.maxfloate_Fp[0.1/4771] Lower uncertainty on FpEarthstat.errorfloat