J/AJ/153/215ivo://CDS.VizieR/J/AJ/153/215doi:10.26093/cds/vizier.51530215CDSPepper J.Rodriguez J.E.Collins K.A.Johnson J.A.Fulton B.J.,Howard A.W.Beatty T.G.Stassun K.G.Isaacson H.Colon K.D.Lund M.B.,Kuhn R.B.Siverd R.J.Gaudi B.S.Tan T.G.Curtis I.Stockdale C.,Mawet D.Bottom M.James D.Zhou G.Bayliss D.Cargile P.Bieryla A.,Penev K.Latham D.W.Labadie-Bartz J.Kielkopf J.Eastman J.D.,Oberst T.E.Jensen E.L.N.Nelson P.Sliski D.H.Wittenmyer R.A.,McCrady N.Wright J.T.Relles H.M.Stevens D.J.Joner M.D.Hintz E.2017-09-18T12:52:29Z2017-08-22T07:15:05ZCDS support team

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

cds-question@unistra.frmultiple-starssolar-system-planetsphotometryradial-velocityWe report the discovery of a transiting exoplanet, KELT-11b, orbiting the bright (V=8.0) subgiant HD93396. A global analysis of the system shows that the host star is an evolved subgiant star with T_eff_=5370+/-51K, M_*_=1.438_-0.052_^+0.061^M_{Sun}_, R_*_=2.72_-0.17_^+0.21^R_{Sun}_, logg_*_=3.727_-0.046_^+0.040^, and [Fe/H]=0.180+/-0.075. The planet is a low-mass gas giant in a P=4.736529+/-0.00006 day orbit, with M_P_=0.195+/-0.018M_J_, R_P_=1.37_-0.12_^+0.15^R_J_, {rho}_P_=0.093_-0.024_^+0.028^g/cm^3^, surface gravity logg_P_=2.407_-0.086_^+0.080^, and equilibrium temperature T_eq_=1712_-46_^+51^K. KELT-11 is the brightest known transiting exoplanet host in the southern hemisphere by more than a magnitude and is the sixth brightest transit host to date. The planet is one of the most inflated planets known, with an exceptionally large atmospheric scale height (2763km), and an associated size of the expected atmospheric transmission signal of 5.6%. These attributes make the KELT-11 system a valuable target for follow-up and atmospheric characterization, and it promises to become one of the benchmark systems for the study of inflated exoplanets.2017AJ....153..215Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/153/215CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/259 : The Tycho-2 Catalogue (Hog+ 2000)J/ApJ/805/175 : Keck and APF radial velocities of HD7924 (Fulton+, 2015)J/ApJ/761/123 : KELT-1 photometry and spectroscopy follow-up (Siverd+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/153/215https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/153/215http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/153/215https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/153/215https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/153/215http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/153/215GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/153/215/star (Star observed)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/153/215/star?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/153/215/star?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/153/215/star?GETtext/xml+votable180.050000true161.70725417-9.399022220.0055555555555555566/26727https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/153/215?format=asciiOpticaldefaultJ/AJ/153/215/figure2The individual follow-up observations of KELT-11b from the Kilodegree Extremely Little Telescope (KELT) follow-up networkrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsObservatory code: either ICO, LCOGT-CPT, MINERVA, MORC, MVRC, PEST, PvdK, or WCO (the full observational details are provided in Table4 of the paper) (1)meta.code;instr.obstycharFltFilter used (Johnson R, Cousins I, I, Sloan g, r', Sloan i, or Sloan z)meta.notecharBJDBarycentric Julian Date (BJD_TDB_)dtime.epochdoubleFlux[0.96/1.023] Relative flux in Fltphot.flux;arith.ratiodoublee_Flux[0.000149/0.00182] Uncertainty in Fluxstat.error;phot.fluxdoubleJ/AJ/153/215/table3Discovery light curve from Kilodegree Extremely Little Telescope (KELT)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian Date (JD_TT_)dtime.epochdoublemag[-0.025/0.027] Relative Kilodegree Extremely Little Telescope (KELT) magnitudemagphot.magfloate_mag[0.001/0.0052] Uncertainty in magmagstat.error;phot.magfloatJ/AJ/153/215/table6KELT-11 radial velocity observations with High Resolution Echelle Spectrometer (HIRES) and Automated Planet Finder (APF)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (BJD_TDB_)dtime.epochdoubleRV[-24/35.6] Radial velocitym/sphys.veloc;pos.heliocentricfloate_RV[1.3/3.7] Uncertainty in RVm/sstat.errorfloatBS[-20.7/13.4]? Bisector spanm/sphys.velocfloatnullablee_BS[1.7/8.8]? Uncertainty in BSm/sstat.errorfloatnullableInstInstrument used (HIRES or APF) (1)instr.setupcharJ/AJ/153/215/starStar observedVCVelocity curvemeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000) (1)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000) (1)pos.eq.dec;meta.mainPerPerioddtime.perioddoubleTycho-2Display the Tycho-2 data (Hog et al. 2000, Cat. I/259)meta.ref.urlcharKELT-SDiscovery light curvemeta.ref.urlcharLCOGT-CPTLCOGT-CPT follow-up light curvemeta.ref.urlcharMINERVAMINERVA follow-up light curvemeta.ref.urlcharMORC-iMORC i-band follow-up light curvemeta.ref.urlcharMORC-gMORC g-band follow-up light curvemeta.ref.urlcharMVRCMVRC follow-up light curvemeta.ref.urlcharPESTPEST follow-up light curvemeta.ref.urlcharPvdKPvdK follow-up light curvemeta.ref.urlcharWCOWCO follow-up light curvemeta.ref.urlcharICOICO follow-up light curvemeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar