J/ApJ/683/1076ivo://CDS.VizieR/J/ApJ/683/1076doi:10.26093/cds/vizier.16831076CDSWinn J.N.Holman M.J.Torres G.McCullough P.Johns-Krull C.,Latham D.W.Shporer A.Mazeh T.Garcia-Melendo E.Foote C.,Esquerdo G.Everett M.2009-09-20T09:45:06Z2009-09-20T09:38:17ZCDS support team

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

cds-question@unistra.frvariable-starssolar-system-planetsphotometryWe present photometry of 13 transits of XO-3b, a massive transiting planet on an eccentric orbit. Previous data led to two inconsistent estimates of the planetary radius. Our data strongly favor the smaller radius, with increased precision: R_p_=1.217+/-0.073R_{sun}_. A conflict remains between the mean stellar density determined from the light curve, and the stellar surface gravity determined from the shapes of spectral lines. We argue the light curve should take precedence, and revise the system parameters accordingly. The planetary radius is about 1{sigma} larger than the theoretical radius for a hydrogen-helium planet of the given mass and insolation. To help in planning future observations, we provide refined transit and occultation ephemerides.2008ApJ...683.1076Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/683/1076CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/652/1715 : Four transits of the exoplanet XO-1b (Holman+, 2006)J/AJ/133/11 : Photometry of OGLE-TR 111 (Winn+, 2007)J/ApJ/657/1098 : Transit of TrES-1 (Winn+, 2007)J/ApJ/655/1103 : Five transits of the exoplanet OGLE-TR-10b (Holman+, 2007)J/AJ/133/1828 : Transit light curves of HD 189733 (Winn+, 2007)J/ApJ/664/1185 : Three transits of the exoplanet TrES-2 (Holman+, 2007)J/AJ/134/1707 : Six transit of exoplanet HAT-P-1b (Winn+, 2007)J/AJ/136/267 : Six occultations of the exoplanet TrES-3 (Winn+, 2008)J/ApJ/693/794 : Transit of exoplanet HD 17156b (Winn+, 2009)J/AJ/137/3826 : Two transits of the giant planet WASP-4b (Winn+, 2009)J/AJ/137/4911 : Six transits of the exoplanet XO-2b (Fernandez+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/683/1076https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/683/1076http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/683/1076https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/683/1076https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/683/1076http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/683/1076GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/683/1076/table2Photometry of XO-3recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintInst[1/4] Instrument code (1)meta.code;instrintFilt[IRVz clear] Filtermeta.id;instr.filtercharHJDHeliocentric Julian Datedtime.epochdoubleRfluxRelative fluxphot.flux;arith.ratiofloat