J/ApJ/742/116ivo://CDS.VizieR/J/ApJ/742/116doi:10.26093/cds/vizier.17420116CDSBakos G.A.Hartman J.Torres G.Latham D.W.Kovacs G.Noyes R.W.,Fischer D.A.Johnson J.A.Marcy G.W.Howard A.W.Kipping D.,Esquerdo G.A.Shporer A.Beky B.Buchhave L.A.Perumpilly G.,Everett M.Sasselov D.D.Stefanik R.P.Lazar J.Papp I.Sari P.2017-06-13T11:09:01Z2013-05-27T12:38:13ZCDS support team

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

cds-question@unistra.frmultiple-starsinfrared-photometryvisible-astronomybroad-band-photometrysolar-system-planetsWe report the discovery of four relatively massive (2-7M_J_) transiting extrasolar planets. HAT-P-20b orbits the moderately bright V=11.339 K3 dwarf star GSC 1910-00239 on a circular orbit, with a period P=2.875317+/-0.000004 days. The planetary companion has a mass of 7.246+/-0.187M_J_ and a radius of 0.867+/-0.033R_J_ yielding a mean density of 13.78+/-1.50g/cm^3^. HAT-P-21b orbits the V=11.685 G3 dwarf star GSC 3013-01229 on an eccentric (e=0.228+/-0.016) orbit, with a period P=4.124481+/-0.000007 days. The planetary companion has a mass of 4.063+/-0.161M_J_ and a radius of 1.024+/-0.092R_J_ yielding a mean density of 4.68^+1.59^_-0.99_g/cm^3^. HAT-P-21b is a borderline object between the pM and pL class planets, and the transits occur near apastron. HAT-P-22b orbits the bright V=9.732 G5 dwarf star HD 233731 on a circular orbit, with a period P=3.212220+/-0.000009 days. The planet has a mass of 2.147+/-0.061M_J_ and a compact radius of 1.080+/-0.058R_J_ yielding a mean density of 2.11^+0.40^_-0.29_g/cm^3^. The host star also harbors an M-dwarf companion at a wide separation. Finally, HAT-P-23b orbits the V=12.432 G0 dwarf star GSC 1632-01396 on a close to circular orbit, with a period P=1.212884+/-0.000002 days. The planetary companion has a mass of 2.090+/-0.111M_J_ and a radius of 1.368+/-0.090R_J_ yielding a mean density of 1.01+/-0.18g/cm^3^. HAT-P-23b is an inflated and massive hot Jupiter on a very short period orbit, and has one of the shortest characteristic infall times (7.5^+2.9^_-1.8_Myr) before it gets engulfed by the star.2011ApJ...742..116Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/742/116CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/552/A119 : Planet-star and moon-planet interaction (Saur+, 2013)J/MNRAS/422/2024 : X-ray-age relation & exoplanet evaporation (Jackson+, 2012)J/PASP/123/412 : Exoplanet Orbit Database (Wright+, 2011)J/MNRAS/411/L46 : Exoplanet magnetic fields (Vidotto+, 2011)J/MNRAS/414/108 : Calibrator of exoplanet-host stars (Beust+, 2011)J/ApJ/742/59 : HAT-P-32 and HAT-P-33 follow-up (Hartman+, 2011)J/ApJ/728/138 : Follow-up photometry of HAT-P-26 (Hartman+, 2011)J/ApJ/726/52 : HAT-P-18 and HAT-P-19 follow-up (Hartman+, 2011)J/AJ/141/166 : HATNet variability survey of K & M dwarfs (Hartman+, 2011)J/ApJ/715/458 : Differential photometry of HAT-P-14 (Torres+, 2010)J/ApJ/710/1724 : Follow-up photometry for HAT-P-11 (Bakos+, 2010)J/ApJ/707/446 : HAT-P-13 photometry follow-up (Bakos+, 2009)J/ApJ/706/785 : HAT-P-12 light curve (Hartman+, 2009)J/ApJ/696/1950 : Sloan iz light curves of HAT-P-10 (Bakos+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/742/116https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/742/116http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/742/116https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/742/116https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/742/116http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/742/116GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/ApJ/742/116/table8High-precision differential photometry of HAT-P-20recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDUTC Barycentric Julian date (BJD-2400000)dtime.epochdoublemagObserved magnitude in Filt (1)magphot.magdoublee_magUncertainty in magmagstat.error;phot.magdoubleOmagRaw magnitude in Filt (2)magphot.magdoubleFilt[giz] Filter (i for HAT-P-20 and HAT-P-21, gz for HAT-P-22 and gi for HAT-P-23)meta.id;instr.filtercharJ/ApJ/742/116/table9High-precision differential photometry of HAT-P-21recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDUTC Barycentric Julian date (BJD-2400000)dtime.epochdoublemagObserved magnitude in Filt (1)magphot.magdoublee_magUncertainty in magmagstat.error;phot.magdoubleOmagRaw magnitude in Filt (2)magphot.magdoubleFilt[giz] Filter (i for HAT-P-20 and HAT-P-21, gz for HAT-P-22 and gi for HAT-P-23)meta.id;instr.filtercharJ/ApJ/742/116/table10High-precision differential photometry of HAT-P-22recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDUTC Barycentric Julian date (BJD-2400000)dtime.epochdoublemagObserved magnitude in Filt (1)magphot.magdoublee_magUncertainty in magmagstat.error;phot.magdoubleOmagRaw magnitude in Filt (2)magphot.magdoubleFilt[giz] Filter (i for HAT-P-20 and HAT-P-21, gz for HAT-P-22 and gi for HAT-P-23)meta.id;instr.filtercharJ/ApJ/742/116/table11High-precision differential photometry of HAT-P-23recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDUTC Barycentric Julian date (BJD-2400000)dtime.epochdoublemagObserved magnitude in Filt (1)magphot.magdoublee_magUncertainty in magmagstat.error;phot.magdoubleOmagRaw magnitude in Filt (2)magphot.magdoubleFilt[giz] Filter (i for HAT-P-20 and HAT-P-21, gz for HAT-P-22 and gi for HAT-P-23)meta.id;instr.filterchar