J/ApJ/772/L2ivo://CDS.VizieR/J/ApJ/772/L2doi:10.26093/cds/vizier.17729002CDSDragomir D.Matthews J.M.Eastman J.D.Cameron C.Howard A.W.,Guenther D.B.Kuschnig R.Moffat A.F.J.Rowe J.F.Rucinski S.M.,Sasselov D.Weiss W.W.2017-06-20T13:17:34Z2015-03-09T13:46:32ZCDS support team

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

cds-question@unistra.frradial-velocitymultiple-starsThrough photometric monitoring of the extended transit window of HD 97658b with the MOST space telescope, we have found that this exoplanet transits with an ephemeris consistent with that predicted from radial velocity measurements. The mid-transit times are 5.6{sigma} earlier than those of the unverified transit-like signals reported in 2011, and we find no connection between the two sets of events. The transit depth together with our determined stellar radius (R_{star}_=0.703_-0.034_^+0.039^R_{sun}_) indicates a 2.34_-0.15_^0.18^R_{Earth}_ super-Earth. When combined with the radial velocity determined mass of 7.86+/-0.73M_{Earth}_, our radius measure allows us to derive a planet density of 3.44_-0.82_^+0.91^g/cm3. Models suggest that a planet with our measured density has a rocky core that is enveloped in an atmosphere composed of lighter elements. The star of the HD 97658 system is the second brightest known to host a transiting super-Earth, facilitating follow-up studies of this not easily daunted, warm and likely volatile-rich exoplanet.2013ApJ...772L...2Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/772/L2CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/759/L41 : New radial velocities of HD 97658 (Dragomir+, 2012)J/ApJ/754/37 : HD 192263 radial velocities and photometry (Dragomir+, 2012)J/A+A/533/A114 : Transit of super-Earth 55 Cnc e (Demory+, 2011)J/PASP/123/412 : Exoplanet Orbit Database (Wright+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/772/L2https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/772/L2http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/772/L2https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/772/L2https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/772/L2http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/772/L2GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/772/L2/table1Radial velocities for HD 97658recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (BJD-2440000)dtime.epochdoubleRVel[-12.7/12.7] Radial velocitym/sphys.veloc;pos.heliocentricfloate_RVel[0.4/1.7] Uncertainty in RVelm/sstat.error;spect.dopplerVelocfloat