J/AJ/155/79ivo://CDS.VizieR/J/AJ/155/79doi:10.26093/cds/vizier.51550079CDSHenning T.Mancini L.Sarkis P.Bakos G.A.Hartman J.D.Bayliss D.,Bento J.Bhatti W.Brahm R.Ciceri S.Csubry Z.de Val-Borro M.,Espinoza N.Fulton B.J.Howard A.W.Isaacson H.T.Jordan A.Marcy G.W.,Penev K.Rabus M.Suc V.Tan T.G.Tinney C.G.Wright D.J.Zhou G.,Durkan S.Lazar J.Papp I.Sari P.2019-01-07T08:56:30Z2018-10-22T12:41:24ZCDS support team

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

cds-question@unistra.frg-starsdwarf-starsradial-velocityphotometryvisible-astronomyexoplanetsWe report the discovery of four close-in transiting exoplanets (HATS-50b through HATS-53b), discovered using the HATSouth three-continent network of homogeneous and automated telescopes. These new exoplanets belong to the class of hot Jupiters and orbit G-type dwarf stars, with brightness in the range V=12.5-14.0 mag. While HATS-53 has many physical characteristics similar to the Sun, the other three stars appear to be metal-rich ([Fe/H]=0.2-0.3), larger, and more massive. Three of the new exoplanets, namely HATS-50b, HATS-51b, and HATS-53b, have low density (HATS-50b: 0.39+/-0.10 M_J_, 1.130+/-0.075 R_J_; HATS-51b: 0.768+/-0.045 M_J_, 1.41+/-0.19 R_J_; HATS-53b: 0.595+/-0.089 M_J_, 1.340+/-0.056 R_J_) and similar orbital periods (3.8297 days, 3.3489 days, 3.8538 days, respectively). Instead, HATS-52b is more dense (mass 2.24+/-0.15 M_J_ and radius 1.382+/-0.086 R_J_) and has a shorter orbital period (1.3667 days). It also receives an intensive radiation from its parent star and, consequently, presents a high equilibrium temperature (T_eq_=1834+/-73 K). HATS-50 shows a marginal additional transit feature consistent with an ultra-short-period hot super Neptune (upper mass limit 0.16 M_J_), which will be able to be confirmed with TESS photometry.2018AJ....155...79Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/155/79CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/508/1509 : Sky maps for hot Jupiters (Heller+, 2009)J/A+A/524/A25 : Radial Velocities on 6 exoplanet host stars (Triaud+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/155/79https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/155/79http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/155/79https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/155/79https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/155/79http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/155/79GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/155/79/stars (List of stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/155/79/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/155/79/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/155/79/stars?GETtext/xml+votable180.050000true300.4280417-26.07758330.0055555555555555566/24622 39851 40014 48674https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/155/79?format=asciiOpticaldefaultJ/AJ/155/79/starsList of starsVPVelocity Plotmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifiermeta.id;meta.maincharRAJ2000Simbad Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Simbad Degree of Declination (J2000)pos.eq.dec;meta.mainJ/AJ/155/79/table3Relative radial velocities and bisector spans for HATS-50 - HATS-53recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (HATS-50, HATS-51, HATS-52 or HATS-53)meta.id;meta.maincharBJD[6828.86592/7645.8947] Barycentric Julian Date (BJD-2450000)dtime.epochdoublef_BJD[d] Flag on BJD (1)meta.codecharRV[-355.62/566.38] Radial velocity (2)m/sphys.veloc;pos.heliocentricfloate_RV[4.49/63] The 1{sigma} uncertainty in RV (3)m/sstat.errorfloatBS[-301/147]? Bisector spanm/sphys.velocfloatnullablee_BS[10/68]? The 1{sigma} uncertainty in BSm/sstat.errorfloatnullablePhase[0/0.978] Orbital phasetime.phasefloatInstInstrument usedinstr.setupcharJ/AJ/155/79/table4Light curve data for HATS-50, HATS-52 and HATS-53recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (HATS-50, HATS-52 or HATS-53)meta.id;meta.maincharBJD[55274.29188/57433.38925] Barycentric Julian Date (UTC ; BJD-2400000) (1)dtime.epochdoublemag[-0.06249/0.05087] Subtracted magnitude in Filter (2)magphot.mag;arith.diffdoublee_mag[0.0005/0.03485] The 1{sigma} uncertainty in magmagstat.error;phot.magdoubleOmag[-0.02164/15.2]? Original magnitude (3)magphot.magdoublenullableFilter[r R Rc i] Filter usedinstr.setup;instr.filtercharInstInstrument usedinstr.setupchar