J/ApJ/761/123ivo://CDS.VizieR/J/ApJ/761/123doi:10.26093/cds/vizier.17610123CDSSiverd R.J.Beatty T.G.Pepper J.Eastman J.D.Collins K.Bieryla A.,Latham D.W.Buchhave L.A.Jensen E.L.N.Crepp J.R.Street R.,Stassun K.G.Gaudi B.S.Berlind P.Calkins M.L.Depoy D.L.,Esquerdo G.A.Fulton B.J.Furesz G.Geary J.C.Gould A.Hebb L.,Kielkopf J.F.Marshall J.L.Pogge R.Stanek K.Z.Stefanik R.P.,Szentgyorgyi A.H.Trueblood M.Trueblood P.Stutz A.M.van Saders J.L.2018-11-13T12:07:58Z2014-09-10T14:49:12ZCDS support team

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

cds-question@unistra.frmultiple-starsinfrared-photometryvisible-astronomybroad-band-photometryradial-velocityWe present the discovery of KELT-1b, the first transiting low-mass companion from the wide-field Kilodegree Extremely Little Telescope-North (KELT-North) transit survey. A joint analysis of the spectroscopic, radial velocity, and photometric data indicates that the V=10.7 primary is a mildly evolved mid-F star with T_eff_=6516+/-49K, logg=4.228^+0.014^_-0.021_, and [Fe/H]=0.052+/-0.079, with an inferred mass M_*_=1.335+/-0.063M_{sun}_ and radius R_*_=1.471^+0.045^_-0.035_R_{sun}_. The companion is a low-mass brown dwarf or a super-massive planet with mass M_P_=27.38+/-0.93M_Jup_ and radius R_P_=1.116^+0.038^_-0.029_R_Jup_. The companion is on a very short (~29 hr) period circular orbit, with an ephemeris T_c_ (BJD_TDB_)=2455909.29280+/-0.00023 and P=1.217501+/-0.000018 days. KELT-1b receives a large amount of stellar insolation, resulting in an estimated equilibrium temperature assuming zero albedo and perfect redistribution of T_eq_=2423^+34^_-27_K. Comparison with standard evolutionary models suggests that the radius of KELT-1b is likely to be significantly inflated. Adaptive optics imaging reveals a candidate stellar companion to KELT-1 with a separation of 588+/-1mas, which is consistent with an M dwarf if it is at the same distance as the primary. Rossiter-McLaughlin measurements during transit imply a projected spin-orbit alignment angle {lambda}=2+/-16deg, consistent with a zero obliquity for KELT-1. Finally, the vsinI_*_=56+/-2km/s of the primary is consistent at ~2{sigma} with tidal synchronization. Given the extreme parameters of the KELT-1 system, we expect it to provide an important testbed for theories of the emplacement and evolution of short-period companions, as well as theories of tidal dissipation and irradiated brown dwarf atmospheres.2012ApJ...761..123Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/761/123CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/vsx : AAVSO International Variable Star Index VSX (Watson+, 2006-2014)J/ApJS/204/24 : Kepler planetary candidates. III. (Batalha+, 2013)J/ApJ/753/156 : T/Y brown dwarfs with WISE photometry (Kirkpatrick+, 2012)J/PASP/123/412 : Exoplanet Orbit Database (Wright+, 2011)J/ApJ/663/573 : Sloan gi light curves of HAT-TR-205-012 (Beatty+, 2007)J/AJ/128/1761 : HATNET variability survey (Hartman+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/761/123https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/761/123http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/761/123https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/761/123https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/761/123http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/761/123GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfraredOpticaldefaultJ/ApJ/761/123/table17Relative photometry from ULMO on UT 2012-01-04 (i)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; TDBdtime.epochdoubleRFlux[0.985/1.008] Relative flux (1)phot.flux;arith.ratiodoublee_RFluxUncertainty in RFluxstat.errordoubleJ/ApJ/761/123/velocCombined table from original tablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; TDB (1)time.epochdoubleTmeta.codecharRV[-18414/-9968] Radial velocity (2)m/sphys.veloc;pos.heliocentricdoublee_RV[93/367] RV uncertainty (2)m/sstat.errorfloatBS[-699.1/267] Bisector spanm/sphys.velocfloate_BS[46/413] BS uncertaintym/sstat.errorfloatJ/ApJ/761/123/table9Relative photometry from PvdKO on UT 2011-12-03 (i)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; TDBdtime.epochdoubleRFlux[0.985/1.008] Relative flux (1)phot.flux;arith.ratiodoublee_RFluxUncertainty in RFluxstat.errordoubleJ/ApJ/761/123/table10Relative photometry from ULMO on UT 2011-12-03 (r)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; TDBdtime.epochdoubleRFlux[0.985/1.008] Relative flux (1)phot.flux;arith.ratiodoublee_RFluxUncertainty in RFluxstat.errordoubleJ/ApJ/761/123/table11Relative photometry from HAO on UT 2011-12-10 (i)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; TDBdtime.epochdoubleRFlux[0.985/1.008] Relative flux (1)phot.flux;arith.ratiodoublee_RFluxUncertainty in RFluxstat.errordoubleJ/ApJ/761/123/table12Relative photometry from FLWO on UT 2011-12-16 (z)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; TDBdtime.epochdoubleRFlux[0.985/1.008] Relative flux (1)phot.flux;arith.ratiodoublee_RFluxUncertainty in RFluxstat.errordoubleJ/ApJ/761/123/table13Relative photometry from ULMO on UT 2011-12-31 (r)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; TDBdtime.epochdoubleRFlux[0.985/1.008] Relative flux (1)phot.flux;arith.ratiodoublee_RFluxUncertainty in RFluxstat.errordoubleJ/ApJ/761/123/table14Relative photometry from FLWO on UT 2012-01-07 (i)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; TDBdtime.epochdoubleRFlux[0.985/1.008] Relative flux (1)phot.flux;arith.ratiodoublee_RFluxUncertainty in RFluxstat.errordoubleJ/ApJ/761/123/table15Relative photometry from ULMO on UT 2011-12-02 (i)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; TDBdtime.epochdoubleRFlux[0.985/1.008] Relative flux (1)phot.flux;arith.ratiodoublee_RFluxUncertainty in RFluxstat.errordoubleJ/ApJ/761/123/table16Relative photometry from FTN/LCOGT on UT 2011-12-30 (PS-Z)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date; TDBdtime.epochdoubleRFlux[0.985/1.008] Relative flux (1)phot.flux;arith.ratiodoublee_RFluxUncertainty in RFluxstat.errordouble