Kepler-10 chemical compositionJ/MNRAS/456/2636ivo://CDS.VizieR/J/MNRAS/456/2636doi:10.26093/cds/vizier.74562636CDSLiu F.Yong D.Asplund M.Ramirez I.Melendez J.Gustafsson B.,Howes L.M.Roederer I.U.Lambert D.L.Bensby T.2024-08-15T20:17:27Z2016-11-16T09:23:32ZCDS support teamCDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, Francecds-question@unistra.frmultiple-starssolar-system-planetschemical-abundancesChemical abundance studies of the Sun and solar twins have demonstrated that the solar composition of refractory elements is depleted when compared to volatile elements, which could be due to the formation of terrestrial planets. In order to further examine this scenario, we conducted a line-by-line differential chemical abundance analysis of the terrestrial planet host Kepler-10 and 14 of its stellar twins. Stellar parameters and elemental abundances of Kepler-10 and its stellar twins were obtained with very high precision using a strictly differential analysis of high quality Canada-France-Hawaii Telescope, Hobby-Eberly Telescope and Magellan spectra. When compared to the majority of thick disc twins, Kepler-10 shows a depletion in the refractory elements relative to the volatile elements, which could be due to the formation of terrestrial planets in the Kepler-10 system. The average abundance pattern corresponds to ~13 Earth masses, while the two known planets in Kepler-10 system have a combined ~20 Earth masses. For two of the eight thick disc twins, however, no depletion patterns are found. Although our results demonstrate that several factors [e.g. planet signature, stellar age, stellar birth location and Galactic chemical evolution (GCE)] could lead to or affect abundance trends with condensation temperature, we find that the trends give further support for the planetary signature hypothesis.2016MNRAS.456.2636Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/456/2636CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/456/2636https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/456/2636http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/456/2636https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/456/2636https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/456/2636http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/456/2636GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/456/2636/table1 (Stellar parameters of Kepler-10 and its stellar twins)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/456/2636/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/456/2636/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/456/2636/table1?GETtext/xml+votable180.050000true285.679429250.24131940.0055555555555555566/15149 25854 26520 26549 27757 35230 38834 40317 41912 43782 45421 45654 46681 48065 48865https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/456/2636?format=asciidefault
J/MNRAS/456/2636/table1Stellar parameters of Kepler-10 and its stellar twinsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObjectObject namemeta.id;meta.maincharn_Object[bcd] Note on Object (1)meta.notecharTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggrms uncertainty on logglog(cm.s**-2)stat.errorfloatvturbMicroturbulent velocitykm/sphys.velocfloate_vturbrms uncertainty on vturbkm/sstat.errorfloat[Fe/H]Metallicityphys.abund.Zfloate_[Fe/H]rms uncertainty on [Fe/H]stat.error;phys.abund.FefloatPThinProbability of thin disc (2)%statintPThickProbability of thick disc (2)%statintPop[thick/thin ] Populationsrc.classcharn_Pop[e] Note on Pop (1)meta.notecharAgeAgeGyrtime.agefloate_Agerms uncertainty on AgeGyrstat.error;time.agefloatAbdDisplay 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.main
J/MNRAS/456/2636/table2[X/H] for Kepler-10 and the average of its thick disc stellar twinsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintElElementphys.atmol.elementchar[X/H]HetKepler-10 [X/H] derived with HET data, relative to the Sunphys.abundfloate_[X/H]Hetrms uncertainty on [X/H]Hetstat.error;phys.abundfloat[X/H]CFHTKepler-10 [X/H] derived with CFHT data, relative to the Sunphys.abundfloate_[X/H]CFHTrms uncertainty on [X/H]CFHTstat.error;phys.abundfloat[X/H]twMean thick disc twins [X/H] derived with respect to Kepler-10 (HET)phys.abundfloate_[X/H]twrms uncertainty on [X/H]twstat.error;phys.abundfloat
J/MNRAS/456/2636/tablea1Atomic line data adopted for the abundance analysisrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaWavelength0.1nmem.wldoubleElElementphys.atmol.elementcharEPExcitation potentialeVphys.atmol.excitationfloatloggfOscillator strengthphys.atmol.oscStrengthfloat