J/AJ/157/100ivo://CDS.VizieR/J/AJ/157/100doi:10.26093/cds/vizier.51570100CDSJordan A.Brahm R.Espinoza N.Cortes C.Diaz M.Drass H.Henning T.,Jenkins J.S.Jones M.I.Rabus M.Rojas F.Sarkis P.Vuckovic M.,Zapata A.Soto M.G.Bakos G.A.Bayliss D.Bhatti W.Csubry Z.,Lachaume R.Moraga V.Pantoja B.Osip D.Shporer A.Suc V.Vasquez S.2019-07-26T08:55:48Z2019-06-07T07:42:46ZCDS support team

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

cds-question@unistra.frdwarf-starsg-starsradial-velocityexoplanetsWe report the discovery of K2-287b, a Saturn mass planet orbiting a G-dwarf with a period of P~15 days. First uncovered as a candidate using K2 campaign 15 data, follow-up photometry and spectroscopy were used to determine a mass M_P_=0.317+/-0.026 M_J_, radius R_P_=0.833+/-0.013 R_J_, period P=14.893291+/-0.000025 days, and eccentricity e=0.476+/-0.026. The host star is a metal-rich V=11.410+/-0.129 mag G-dwarf for which we estimate a mass M_*_=1.056_-0.021_^+0.022^ M_{sun}__, radius R_*_=1.070+/-0.010 R_{sun}_, metallicity [Fe/H]=0.20+/-0.05, and T_eff_=5673+/-75 K. This warm eccentric planet with a time-averaged equilibrium temperature of T_eq_~800 K adds to the small sample of giant planets orbiting nearby stars whose structure is not expected to be affected by stellar irradiation. Follow-up studies on the K2-287 system could help constrain theories of planet migration in close-in orbits.2019AJ....157..100Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/157/100CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/AJ/154/207 : K2 planetary systems orbiting low-mass stars (Dressing+, 2017)J/ApJ/836/167 : K2 planetary syst. around low-mass stars. I. (Dressing+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/157/100https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/157/100http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/157/100https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/157/100https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/157/100http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/157/100GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/AJ/157/100/table1Relative radial velocities and bisector spans for K2-287recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[58168.8/58333.6] Barycentric Julian Date (BJD-2400000)dtime.epochdoubleRV[32.8463/33.0158] Radial velocitym/sphys.veloc;pos.heliocentricfloate_RV[0.0029/0.0095] Uncertainty in RVm/sstat.errorfloatBIS[-0.1/0.025] Bisector spanm/sphys.velocfloate_BIS[0.004/0.015] Uncertainty in BISm/sstat.errorfloatInstInstrument (FEROS or HARPS)meta.id;instrchar