J/ApJ/724/866ivo://CDS.VizieR/J/ApJ/724/866doi:10.26093/cds/vizier.17240866CDSKovacs G.Bakos G.A.Hartman J.D.Torres G.Noyes R.W.Latham D.W.,Howard A.W.Fischer D.A.Johnson J.A.Marcy G.W.Isaacson H.,Sasselov D.D.Stefanik R.P.Esquerdo G.A.Fernandez J.M.Lazar B.B.J.,Papp I.Sari P.2017-06-20T13:16:14Z2012-08-20T08:52:40ZCDS support team

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

cds-question@unistra.frvisible-astronomysloan-photometrysolar-system-planetsmultiple-starsg-starsWe report the discovery of HAT-P-15b, a transiting extrasolar planet in the "period valley," a relatively sparsely populated period regime of the known extrasolar planets. The host star, GSC 2883-01687, is a G5 dwarf with V=12.16. It has a mass of 1.01+/-0.04M_{sun}_, radius of 1.08+/-0.04R_{sun}_, effective temperature 5568+/-90K, and metallicity [Fe/H]=+0.22+/-0.08. The planetary companion orbits the star with a period P=10.863502+/-0.000027 days, transit epoch T_c_=2454638.56019+/-0.00048(BJD), and transit duration 0.2285+/-0.0015days. It has a mass of 1.946+/-0.066M_J_ and radius of 1.072+/-0.043R_J_ yielding a mean density of 1.96+/-0.22g/cm^3^. At an age of 6.8^+2.5^_-1.6_Gyr, the planet is H/He-dominated and theoretical models require about 2% (10M_{earth}_) worth of heavy elements to reproduce its measured radius. With an estimated equilibrium temperature of ~820K during transit, and ~1000K at occultation, HAT-P-15b is a potential candidate to study moderately cool planetary atmospheres by transmission and occultation spectroscopy.2010ApJ...724..866Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/724/866CatalogResearchIsServedByTAP VizieR generic servicerelated-toII/271 : TASS Mark IV patches photometric catalog, version 2 (Droege+, 2007)III/159 : Ca II H and K Measurements Made at MWO (Duncan+ 1991)J/MNRAS/422/2024 : X-ray-age relation and exoplanet (Jackson+, 2012)J/MNRAS/414/108 : Calibrator of exoplanet-host stars (Beust+, 2011)J/MNRAS/411/L46 : Exoplanet magnetic fields (Vidotto+, 2011)J/MNRAS/414/1278 : Eccentricities of transiting planets (Pont+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/724/866https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/724/866http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/724/866https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/724/866https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/724/866http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/724/866GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/724/866/table3Photometric follow-up of HAT-P-15recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (BJD-2400000)dtime.epochdoublemagRelative magnitude in Filt (1)magphot.magdoublee_magError in magmagphot.magdoubleRmagRaw magnitude in Filt (2)magphot.magdoubleFilt[iz] Filter used in observationinstr.setup;obscharJ/ApJ/724/866/table1Relative RV, bisector, and activity indices of HAT-P-15recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (BJD-2454000)dtime.epochdoublef_BJDFlag on BJD (1)meta.codecharRV? Radial velocity (2)m/sphys.veloc;arith.difffloatnullablee_RV? RV uncertainty (3)m/sstat.errorfloatnullableBSBisector span (BS)m/sphys.velocfloate_BSBS uncertaintym/sstat.errorfloatSMount Wilson activity S-index (4)spect.indexfloatlogR'HKR'_HK_ chromospheric activity index (4)phot.flux;arith.ratiofloat