J/AJ/156/78ivo://CDS.VizieR/J/AJ/156/78doi:10.26093/cds/vizier.51560078CDSLivingston J.H.Endl M.Dai F.Cochran W.D.Barragan O.Gandolfi D.,Hirano T.Grziwa S.Smith A.M.S.Albrecht S.Cabrera J.Csizmadia S.,de Leon J.P.Deeg H.Eigmuller P.Erikson A.Everett M.Fridlund M.,Fukui A.Guenther E.W.Hatzes A.P.Howell S.Korth J.Narita N.,Nespral D.Nowak G.Palle E.Patzold M.Persson C.M.Prieto-Arranz J.,Rauer H.Tamura M.Van Eylen V.Winn J.N.2019-03-25T13:45:09Z2019-03-14T09:45:08ZCDS support team

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

cds-question@unistra.frexoplanetsmultiple-starsphotometrystellar-radiistellar-masseseffective-temperaturemetallicitystellar-distancespectroscopyWe present 44 validated planets from the 10th observing campaign of the NASA K2 mission, as well as high-resolution spectroscopy and speckle imaging follow-up observations. These 44 planets come from an initial set of 72 vetted candidates, which we subjected to a validation process incorporating pixel-level analyses, light curve analyses, observational constraints, and statistical false positive probabilities. Our validated planet sample has median values of R_p_=2.2 R_{Earth}_, P_orb_=6.9 days, T_eq_=890 K, and J=11.2 mag. Of particular interest are four ultra-short period planets (P_orb_~<1 day), 16 planets smaller than 2 R_{Earth}_, and two planets with large predicted amplitude atmospheric transmission features orbiting infrared-bright stars. We also present 27 planet candidates, most of which are likely to be real and worthy of further observations. Our validated planet sample includes 24 new discoveries and has enhanced the number of currently known super-Earths (R_p_~1-2 R_{Earth}_), sub-Neptunes (R_p_~2-4 R_{Earth}_), and sub-Saturns (R_p_~4-8 R_{Earth}_) orbiting bright stars (J=8-10 mag) by ~4%, ~17%, and ~11%, respectively.2018AJ....156...78Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/156/78CatalogResearchIsServedByTAP VizieR generic servicerelated-toIV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)J/AJ/142/19 : Speckle observations of KOI (Howell+, 2011)J/ApJ/809/25 : Stellar and planet properties for K2 candidates (Montet+, 2015)J/ApJ/825/19 : Mass-radius relationship for planets with Rp<4J/ApJS/222/14 : Planetary candidates from 1st yr K2 mission (Vanderburg+, 2016)J/ApJS/226/7 : Planet candidates discovered using K2's 1st yrJ/AJ/155/21 : Planet candidates from K2 campaigns 5-8 (Petigura+, 2018)J/AJ/155/136 : Planets orbiting bright stars in K2 campaigns 0-10J/ApJS/239/5 : Variable stars and cand. planets from K2 (Crossfield+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/156/78https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/156/78http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/156/78https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/156/78https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/156/78http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/156/78GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/AJ/156/78/table6Stellar parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEPICEPIC identifier (EPIC NNNNNNNNN)meta.id;meta.maincharprimarymoreindicates data in Tables 1 & 9 for this starmeta.ref.urlcharPlDisplay planet(s) data for this starmeta.ref.urlcharTeff[3459/8003] Effective temperatureKphys.temperature.effectiveinte_Teff[19/454] Lower limit uncertainty in TeffKstat.error;stat.minintE_Teff[19/452] Upper limit uncertainty in TeffKstat.error;stat.maxintlogg[3.32/4.89] Surface gravity (in cgs units)log(cm.s**-2)phys.gravityfloate_logg[0.01/0.12] Lower limit uncertainty in logglog(cm.s**-2)stat.error;stat.minfloatE_logg[0/0.13] Upper limit uncertainty in logglog(cm.s**-2)stat.error;stat.maxfloat[Fe/H][-0.45/0.38] Metallicity (in dex)phys.abund.Zfloate_[Fe/H][0.01/0.23] Lower limit uncertainty in [Fe/H]stat.error;stat.minfloatE_[Fe/H][0.01/0.23] Upper limit uncertainty in [Fe/H]stat.error;stat.maxfloatMass[0.38/1.87] Stellar masssolMassphys.massfloate_Mass[0.01/0.14] Lower limit uncertainty in MasssolMassstat.error;stat.minfloatE_Mass[0.01/0.11] Upper limit uncertainty in MasssolMassstat.error;stat.maxfloatRad[0.37/3.96] Stellar radiussolRadphys.size.radiusfloate_Rad[0.01/0.16] Lower limit uncertainty in RadsolRadstat.error;stat.minfloatE_Rad[0.01/0.16] Upper limit uncertainty in RadsolRadstat.error;stat.maxfloatDist[64.1/1405.4] Distancepcpos.distance;pos.heliocentricfloate_Dist[0.3/82.3] Lower limit uncertainty in Distpcstat.error;stat.minfloatE_Dist[0.3/102] Upper limit uncertainty in Distpcstat.error;stat.maxfloatvsini[1.8/12.9]? Rotational velocitykm/sphys.veloc.rotatfloatnullablee_vsini[0.12/0.6]? Lower limit uncertainty in vsini (1)km/sstat.error;stat.minfloatnullableE_vsini[0.12/0.6]? Upper limit uncertainty in vsini (1)km/sstat.error;stat.maxfloatnullableRefSource of the spectroscopic parameters used as priors in our analysis (see Section 4.4)meta.bibcharBibcodeBibcode of the referencemeta.bib.bibcodecharJ/AJ/156/78/table1Candidate planets detected in K2 C10Depth[0.0001/0.05928] Transit depthsrc.var.amplitudedoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEPICEPIC identifier (EPIC NNNNNNNNN)meta.id;meta.maincharKpmag[9.2/15.6] Kepler magnitudemagphot.mag;em.optfloatPorb[0.369/37.209] Orbital perioddtime.periodfloatT0[2749.6/2776.76] Mid-transit time (BKJD)dtime.epochfloatT14[0.8/12.4] Duration of transit (1_st_ to 4_th_ contact)htime.durationfloatSDE[6.6/16.3] Signal detection efficiencystat.paramfloatProt[7.2/39]? Rotational perioddtime.periodfloatnullablee_Prot[1.1/11]? Lower limit uncertainty in Protdstat.error;stat.minfloatnullableE_Prot[1.1/11]? Upper limit uncertainty in Protdstat.error;stat.maxfloatnullableJ/AJ/156/78/table4*Validated planets with predicted Doppler semi-amplitudes greater than 1 m/s orbiting stars brighter than Kp=12 magrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEPICEPIC number (EPIC NNNNNNNNN.NN)meta.id;meta.maincharKpmag[9.234/11.998] Kepler magnitudemagphot.mag;em.optfloatKpred[1.2/5.7] Predicted Doppler semi-amplitudem/sphys.veloc;src.orbitalfloate_Kpred[0.4/2.2] Lower limit uncertainty in Kpredm/sstat.error;stat.minfloatE_Kpred[0.5/2.3] Upper limit uncertainty in Kpredm/sstat.error;stat.maxfloatRp[1.14/4.34] Planet radius(6.3781x10+6m)phys.size.radiusfloatPorb[0.3693/26.8199] Orbital perioddtime.periodfloatProt[9.4/22]? Rotational perioddtime.periodfloatnullablee_Prot[1.3/2.7]? Lower limit uncertainty in Protdstat.error;stat.minfloatnullableE_Prot[1.3/6]? Upper limit uncertainty in Protdstat.error;stat.maxfloatnullableJ/AJ/156/78/table12Comparison of parameters between K2 pipelinesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEPICEPIC number (EPIC NNNNNNNNN.NN)meta.id;meta.maincharPorb[0.369293/37.2894] Orbital perioddtime.perioddoublee_Porb[7e-06/0.032089] Lower limit uncertainty in Porbdstat.error;stat.mindoubleE_Porb[7e-06/0.035237] Upper limit uncertainty in Porbdstat.error;stat.maxdoubleDeltaP[0/5.9] Difference in P_orb_, {Delta}P (in {sigma} units)obs.param;arith.difffloatRp/R*[0.0076/0.1879] Planet-to-star radius ratiophys.size;arith.ratiofloate_Rp/R*[0.0004/0.0119] Lower limit uncertainty in Rp/R*stat.error;stat.minfloatE_Rp/R*[0.0004/0.0194] Upper limit uncertainty in Rp/R*stat.error;stat.maxfloatDeltaRp[0/5.3] Difference in R_p_/R_*_, {Delta}R_p_ (in {sigma} units)obs.param;arith.difffloatb[0.21/0.9] Impact parameter (b=acosi/R_*_)src.impactParamfloate_b[0.02/0.37] Lower limit uncertainty in bstat.error;stat.minfloatE_b[0.02/0.39] Upper limit uncertainty in bstat.error;stat.maxfloatDeltab[0/1.2] Difference in b, {Delta}b (in {sigma} units)obs.param;arith.difffloata/R*[2.9/68.6] Scaled orbital distancephys.size;arith.ratiofloate_a/R*[0.4/26.9] Lower limit uncertainty in a/R*stat.error;stat.minfloatE_a/R*[0.2/48.6] Upper limit uncertainty in a/R*stat.error;stat.maxfloatDeltaa[0/1.4] Difference in a/R*, {Delta}a (in {sigma} units)obs.param;arith.difffloatJ/AJ/156/78/table5Planet and candidate parametersa1/R*[2.6/65.6] Scaled orbital distancephys.size;arith.ratiofloatb[0.12/0.76] Impact parameter (b=acosi/R_*_)src.impactParamfloate_b[0.01/0.34] Lower limit uncertainty in bstat.error;stat.minfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEPICEPIC number (EPIC NNNNNNNNN.NN)meta.id;meta.maincharNamePlanet namemeta.idcharStarDisplay host star data for this planetmeta.ref.urlcharPorb[0.36931/37.20364] Orbital perioddtime.perioddoublee_Porb[1e-05/0.03161] Lower limit uncertainty in Porbdstat.error;stat.mindoubleE_Porb[1e-05/0.0266] Upper limit uncertainty in Porbdstat.error;stat.maxdoubleT0[2749.59/2776.7633] Mid-transit time (BKJD)dtime.epochdoublee_T0[0.0002/0.0467] Lower limit uncertainty in T0dstat.error;stat.minfloatE_T0[0.0002/0.055] Upper limit uncertainty in T0dstat.error;stat.maxfloate_a1/R*[0.3/17.2] Lower limit uncertainty in a1/R*stat.error;stat.minfloatE_a1/R*[0.1/11.6] Upper limit uncertainty in a1/R*stat.error;stat.maxfloatE_b[0.01/0.36] Upper limit uncertainty in bstat.error;stat.maxfloatRp/R*[0.0083/0.1892] Planet-to-star radius ratiophys.size;arith.ratiofloate_Rp/R*[0.0004/0.0062] Lower limit uncertainty in Rp/R*stat.error;stat.minfloatE_Rp/R*[0.0006/0.0057] Upper limit uncertainty in Rp/R*stat.error;stat.maxfloata2[0.0095/0.2095] Scaled orbital distanceAUpos.distance;src.orbitalfloate_a2[4e-05/0.0047] Lower limit uncertainty in a2AUstat.error;stat.mindoubleE_a2[5e-05/0.0045] Upper limit uncertainty in a2AUstat.error;stat.maxdoubleRp[0.83/26.44] Planet radius(6.3781x10+6m)phys.size.radiusfloate_Rp[0.03/1.53] Lower limit uncertainty in Rp(6.3781x10+6m)stat.error;stat.minfloatE_Rp[0.06/1.55] Upper limit uncertainty in Rp(6.3781x10+6m)stat.error;stat.maxfloatTeq[337/2336] Planet equilibrium temperatureKphys.temperatureinte_Teq[3/106] Lower limit uncertainty in TeqKstat.error;stat.minintE_Teq[3/109] Upper limit uncertainty in TeqKstat.error;stat.maxintMp[0.7/184.3] Mass predicted (1)(5.97236x10+24kg)phys.massfloate_Mp[0.4/79.4] Lower limit uncertainty in Mp(5.97236x10+24kg)stat.error;stat.minfloatE_Mp[0.5/148.7] Upper limit uncertainty in Mp(5.97236x10+24kg)stat.error;stat.maxfloatKpred[0.6/40.8] Predicted Doppler semi-amplitudem/sphys.veloc;src.orbitalfloate_Kpred[0.4/17.6] Lower limit uncertainty in Kpredm/sstat.error;stat.minfloatE_Kpred[0.4/33] Upper limit uncertainty in Kpredm/sstat.error;stat.maxfloatl_rho*[<] Limit flag on rho*meta.code.errorcharrho*[0.05/10.8] Density of the host star {rho}_*,LC_Sunsrc.densityfloate_rho*[0/6.5]? Lower limit uncertainty in rho*Sunstat.error;stat.minfloatnullableE_rho*[0/6.9]? Upper limit uncertainty in rho*Sunstat.error;stat.maxfloatnullableFPP[1e-14/0.6] False Positive Probabilitystat.fit.goodnessfloatDispDisposition (2)src.classcharJ/AJ/156/78/vespaIndividual false positive scenario likelihoods computed by vespa (table 7) and additional constraints to vespa (table 8)EPICEPIC number (EPIC NNNNNNNNN.NN)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintL-beb[0/0.0006] Likelihood that the signal is due to a background eclipsing binary, at the measured periodstat.likelihooddoubleL-beb-Px2[0/0.0014] Likelihood that the signal is due to a background eclipsing binary, at twice the measured periodstat.likelihooddoubleL-eb[9.4e-114/0.0029] Likelihood that the signal is due to an eclipsing binary, at the measured periodstat.likelihoodcharL-eb-Px2[1.4e-16/0.00039] Likelihood that the signal is due to an eclipsing binary, at twice the measured periodstat.likelihooddoubleL-heb[7.7e-224/1.9e-05] Likelihood that the signal is due to a hierarchical star system with an eclipsing component, at the measured periodstat.likelihoodcharL-heb-Px2[1.4e-102/1e-05] Likelihood that the signal is due to a hierarchical star system with an eclipsing component, at twice the measured periodstat.likelihoodcharL-pl[0.00017/7.5] Likelihood that the signal is due to a planetstat.likelihooddoubleFPP[9.5e-15/0.64] False Positive Probabilitystat.fit.goodnessdoubleMaxRad[6.4/32.6] Maximum radius (the angular size of the photometric aperture)arcsecphys.angSize;srcfloatThresh[1e-05/0.003] Secondary eclipse threshold (the maximum secondary eclipse depth allowed by the light curve)phot.mag;stat.minfloatJ/AJ/156/78/table9WIYN/NESSI data sets used in this workrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEPICEPIC identifier (EPIC NNNNNNNNN)meta.id;meta.maincharWave[562/832] Center wavelength of filter usednminstr.filter;em.wl.centralintWidth[40/44] Width of filter usednmobs.paramintDateObservation datetime.epoch;obsnullableJ/AJ/156/78/table11Predicted atmospheric characteristicsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintEPICEPIC number (EPIC NNNNNNNNN.NN)meta.id;meta.maincharg[0.26/2.12] Planet surface gravity, expressed in units of Earth surface gravity (g_{Earth}_)phys.gravityfloatH[96/1918] Atmospheric scale heightkmphys.sizeintdeltaTS[26/2885] Expected amplitude of atmospheric spectral features {delta}_TS_(10-6)src.var.amplitudeint