J/ApJ/839/94ivo://CDS.VizieR/J/ApJ/839/94doi:10.26093/cds/vizier.18390094CDSBedell M.Bean J.L.Melendez J.Mills S.M.Fabrycky D.C.Freitas F.C.,Ramirez I.Asplund M.Liu F.Yong D.2018-03-12T09:11:02Z2018-01-12T12:44:00ZCDS support team

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

cds-question@unistra.frmetallicityline-intensitiesg-starsThe six planets of the Kepler-11 system are the archetypal example of a population of surprisingly low-density transiting planets revealed by the Kepler mission. We have determined the fundamental parameters and chemical composition of the Kepler-11 host star to unprecedented precision using an extremely high-quality spectrum from Keck-HIRES (R~67000, S/N per pixel ~260 at 600nm). Contrary to previously published results, our spectroscopic constraints indicate that Kepler-11 is a young main-sequence solar twin. The revised stellar parameters and new analysis raise the densities of the Kepler-11 planets by between 20% and 95% per planet, making them more typical of the emerging class of "puffy" close-in exoplanets. We obtain photospheric abundances of 22 elements and find that Kepler-11 has an abundance pattern similar to that of the Sun with a slightly higher overall metallicity. We additionally analyze the Kepler light curves using a photodynamical model and discuss the tension between spectroscopic and transit/TTV-based estimates of stellar density.2017ApJ...839...94Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/839/94CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/315 : UCAC3 Catalogue (Zacharias+ 2009)J/MNRAS/367/1329 : Elemental abundances for 176 stars (Reddy+, 2006)J/A+A/465/271 : Oxygen abundances in nearby stars (Ramirez+, 2007)J/A+A/503/541 : Neutral Li in late-type stars non-LTE calc. (Lind+, 2009)J/ApJ/709/447 : Chemical composition of OGLE-2007-BLG-514S (Epstein+, 2010)J/A+A/547/A36 : Chemical abundances of 87 KOIs (Adibekyan++, 2012)J/A+A/545/A32 : Chemical abundances of 1111 FGK stars (Adibekyan+, 2012)J/ApJ/795/23 : Line list for stellar chemical abundances (Bedell+, 2014)J/A+A/562/A71 : Abundances of solar neighbourhood dwarfs (Bensby+, 2014)J/ApJ/783/123 : Surface gravity for 220 Kepler stars (Campante+, 2014)J/ApJ/784/45 : Kepler's multiple planet candidates. III. (Rowe+, 2014)J/ApJ/801/L10 : XO-2N and XO-2S equivalent widths (Teske+, 2015)J/ApJ/806/248 : AO imaging of KOIs with gas giant planets (Wang+, 2015)J/A+A/592/A156 : The Solar Twin Planet Search. IV. (dos Santos+, 2016)J/MNRAS/456/2636 : Kepler-10 chemical composition (Liu+, 2016)http://www.inspect-stars.com/ : Database for interactive NLTE spectroscopyhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/839/94https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/839/94http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/839/94https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/839/94https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/839/94http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/839/94GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/839/94/table2 (Summary of derived fundamental stellar properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/839/94/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/839/94/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/839/94/table2?GETtext/xml+votable180.050000true6/215 414 1242 1694 3691 14757 20436 32029 36029 48865https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/839/94?format=asciidefaultJ/ApJ/839/94/table2Summary of derived fundamental stellar propertiesSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDStar namemeta.id;meta.maincharf_IDFlag on ID (1)meta.codecharTeff[5606/5836] Effective temperatureKphys.temperature.effectiveinte_Teff[6/29]? Teff uncertainty ({sigma}_T_)Kstat.error;phys.temperature.effectiveintnullablelogg[4.2/4.5] Surface gravitylog(cm.s**-2)phys.gravityfloate_logg[0.02/0.07]? logg uncertainty ({sigma}_logg_)log(cm.s**-2)stat.errorfloatnullableVt[0.8/1.1] Microturbulencekm/sphys.veloc.microTurbfloate_Vt[0.01/0.06]? Vt uncertainty ({sigma}_Vt_)km/sstat.errorfloatnullable[Fe/H][-0.7/0.3] Abundance of [Fe/H]log(Sun)phys.abund.Fefloate_[Fe/H][0.005/0.03]? [Fe/H] uncertainty ({sigma}_[Fe/H]_)log(Sun)stat.error;phys.abund.FedoublenullableEWsDisplay the equivalent width measurements for this star (table 1)meta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.mainnullable_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainnullableJ/ApJ/839/94/table1Line list and measured equivalent widthsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintf_lambda[-] -: Wavelength where EWs are always "0"meta.codecharlambda[4082.9/7933.2] Wavelength in Angstroms0.1nmem.wldoubleSp[6/106] Species identifier (1)phys.atmol.ionStagefloatEP[0/9.2] Excitation potentialeVphys.atmol.excitationfloatlog(gf)[-6.2/0.6] Log of the oscillator strengthphys.atmol.oscStrengthfloatK11[0/158.1]? Measured equivalent width, Kepler-11, milli-Angstroms1e-13mspect.line.eqWidthfloatnullableSun[0/156.5]? Measured equivalent width, the Sun, milli-Angstroms1e-13mspect.line.eqWidthfloatnullableSun2[11.6/123.6]? Measured equivalent width, the Sun, milli-Angstroms (2)1e-13mspect.line.eqWidthfloatnullableHD1178[0/169.4]? Measured equivalent width, HD1178, milli-Angstroms1e-13mspect.line.eqWidthfloatnullableHD10145[0/163.1]? Measured equivalent width, HD10145, milli-Angstroms1e-13mspect.line.eqWidthfloatnullableHD16623[0/142.1]? Measured equivalent width, HD16623, milli-Angstroms1e-13mspect.line.eqWidthfloatnullableHD20329[0/170.3] Measured equivalent width, HD20329, milli-Angstroms1e-13mspect.line.eqWidthfloatHD21727[0/163]? Measured equivalent width, HD21727, milli-Angstroms1e-13mspect.line.eqWidthfloatnullableHD21774[0/172]? Measured equivalent width, HD21774, milli-Angstroms1e-13mspect.line.eqWidthfloatnullableHD28474[0/132]? Measured equivalent width, HD28474, milli-Angstroms1e-13mspect.line.eqWidthfloatnullableHD176733[0/162.6]? Measured equivalent width, HD176733, milli-Angstroms1e-13mspect.line.eqWidthfloatnullableHD191069[0/164.3]? Measured equivalent width, HD191069, milli-Angstroms1e-13mspect.line.eqWidthfloatnullable