J/AJ/155/203ivo://CDS.VizieR/J/AJ/155/203doi:10.26093/cds/vizier.51550203CDSHaywood R.D.Vanderburg A.Mortier A.Giles H.A.C.Lopez-Morales M.,Lopez E.D.Malavolta L.Charbonneau D.Collier Cameron A.,Coughlin J.L.Dressing C.D.Nava C.Latham D.W.Dumusque X.Lovis C.,Molinari E.Pepe F.Sozzetti A.Udry S.Bouchy F.Johnson J.A.,Mayor M.Micela G.Phillips D.Piotto G.Rice K.Sasselov D.,Segransan D.Watson C.Affer L.Bonomo A.S.Buchhave L.A.Ciardi D.R.,Fiorenzano A.F.Harutyunyan A.2019-01-08T08:08:20Z2018-12-12T13:34:42ZCDS support team

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

cds-question@unistra.frvariable-starsradial-velocityspectroscopyexoplanetsWe present the confirmation of a small, moderately irradiated (F=155+/-7 F_{Earth}_) Neptune with a substantial gas envelope in a P=11.8728787+/-0.0000085 day orbit about a quiet, Sun-like G0V star Kepler-1655. Based on our analysis of the Kepler light curve, we determined Kepler-1655b's radius to be 2.213+/-0.082 R_{Earth}_. We acquired 95 high-resolution spectra with Telescopio Nazionale Galileo/HARPS-N, enabling us to characterize the host star and determine an accurate mass for Kepler-1655b of 5.0_-2.8_^+3.1^ M_{Earth}_ via Gaussian-process regression. Our mass determination excludes an Earth-like composition with 98% confidence. Kepler-1655b falls on the upper edge of the evaporation valley, in the relatively sparsely occupied transition region between rocky and gas-rich planets. It is therefore part of a population of planets that we should actively seek to characterize further.2018AJ....155..203Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/155/203CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/552/A78 : Solar like stars radial velocities (Zechmeister+, 2013)J/A+A/615/A175 : Solar system analogs with HARPS (Barbato+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/155/203https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/155/203http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/155/203https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/155/203https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/155/203http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/155/203GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/AJ/155/203/table4HARPS-N RV observations and spectroscopic activity indicators, determined from the DRSrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (UTC)dtime.epochdoubleRV[-40.64913/-40.62378] Radial velocitykm/sphys.veloc;pos.heliocentricdoublee_RV[0.00217/0.00819] 1{sigma} uncertainty in RVkm/sstat.errordoubleFWHM[7.8364/7.89902] Full width at half maximumkm/sspect.line.widthdoubleCont[29.016/29.389] Contrast of the cross-correlation function (1)stat.fit.paramfloatBIS[0.00964/0.04897] Line bisector of the cross-correlation function (1)km/sphys.velocdoublelogRHK[-5.0566/-4.8835] Ca II activity indicator logR'_HK_phot.flux;arith.ratiofloate_logRHK[0.0106/0.0775] 1{sigma} uncertainty in logR(HK)stat.errorfloat