J/ApJ/759/L41ivo://CDS.VizieR/J/ApJ/759/L41doi:10.26093/cds/vizier.17599041CDSDragomir D.Matthews J.M.Howard A.W.Antoci V.Henry G.W.,Guenther D.B.Johnson J.A.Kuschnig R.Marcy G.W.Moffat A.F.J.,Rowe J.F.Rucinski S.M.Sasselov D.Weiss W.W.2017-06-27T06:38:24Z2014-08-22T13:35:59ZCDS support team

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

cds-question@unistra.frradial-velocitymultiple-starsThe radial velocity-discovered exoplanet HD 97658b was recently announced to transit, with a derived planetary radius of 2.93+/-0.28R_{oplus}_. As a transiting super-Earth orbiting a bright star, this planet would make an attractive candidate for additional observations, including studies of its atmospheric properties. We present and analyze follow-up photometric observations of the HD 97658 system acquired with the Microvariability and Oscillations of STars space telescope. Our results show no transit with the depth and ephemeris reported in the announcement paper. For the same ephemeris, we rule out transits for a planet with radius larger than 2.09R_{oplus}_, corresponding to the reported 3{sigma} lower limit. We also report new radial velocity measurements which continue to support the existence of an exoplanet with a period of 9.5 days, and obtain improved orbital parameters.2012ApJ...759L..41Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/759/L41CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/552/A119 : Planet-star and moon-planet interaction (Saur+, 2013)J/A+A/551/L8 : Chromospheric activity of field stars (Pace, 2013)J/A+A/546/A61 : Radial velocities for XHIP catalogue (de Bruijne+, 2012)J/A+A/537/A147 : Optimizing exoplanet transit searches (Herrero+, 2012)J/PASP/123/412 : Exoplanet Orbit Database (Wright+, 2011)J/ApJ/725/875 : Chromospheric activity for CPS stars (Isaacson+, 2010)J/A+A/524/A10 : Radial Velocity standard stars (Crifo+, 2010)J/A+A/521/A12 : Radial velocities of nearby late-type stars (Maldonado+, 2010)J/A+A/520/A79 : Nearby FGK stars chromosph. activity (Martinez-Arnaiz+, 2010)J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)J/ApJS/141/503 : Radial Velocities for 889 late-type stars (Nidever+, 2002)J/A+AS/142/275 : Stellar activity of late-type stars (Strassmeier+ 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/759/L41https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/759/L41http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/759/L41https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/759/L41https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/759/L41http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/759/L41GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/759/L41/table1Radial velocities and S_HK_ values for HD 97658recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; BJD-2440000dtime.epochdoubleRV[-12.6/12.6] Radial velocitym/sphys.veloc;pos.heliocentricfloate_RV[0.4/1.6] Uncertainty on the radial velocitym/sstat.errorfloatSHK[0.16/0.21]? Flux measurement of the CaII H&K linesphot.flux;arith.ratiofloatnullable