J/AJ/158/63ivo://CDS.VizieR/J/AJ/158/63doi:10.26093/cds/vizier.51580063CDSEspinoza N.Hartman J.D.Bakos G.A.Henning T.Bayliss D.Bento J.,Bhatti W.Brahm R.Csubry Z.Suc V.Jordan A.Mancini L.Tan T.G.,Penev K.Rabus M.Sarkis P.de Val-Borro M.Durkan S.Lazar J.,Papp I.Sari P.2019-10-01T07:06:32Z2019-10-01T07:58:14ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsphotometryvisible-astronomyradial-velocityWe report the discovery by the HATSouth project of five new transiting hot Jupiters (HATS-54b through HATS-58Ab). HATS-54b, HATS-55b, and HATS-58Ab are prototypical short-period (P=2.5-4.2 days, R_p_~1.1-1.2 R_J_) hot Jupiters that span effective temperatures from 1350 to 1750 K, putting them in the proposed region of maximum radius inflation efficiency. The HATS-58 system is composed of two stars, HATS-58A and HATS-58B, which are detected thanks to Gaia DR2 data and which we account for in the joint modeling of the available data-with this, we are led to conclude that the hot Jupiter orbits the brighter HATS-58A star. HATS-57b is a short-period (2.35 day), massive (3.15 M_J_), 1.14 R_J_, dense (2.65+/-0.21 g/cm^3^) hot Jupiter orbiting a very active star (2% peak-to-peak flux variability). Finally, HATS-56b is a short-period (4.32 day), highly inflated hot Jupiter (1.7 R_J_, 0.6 M_J_), which is an excellent target for future atmospheric follow-up, especially considering the relatively bright nature (V=11.6) of its F dwarf host star. This latter exoplanet has another very interesting feature: the radial velocities show a significant quadratic trend. If we interpret this quadratic trend as arising from the pull of an additional planet in the system, we obtain a period of P_c_=815_-143_^+253^ days for the possible planet HATS-56c, and a minimum mass of M_c_sini_c_=5.11+/-0.94 M_J_. The candidate planet HATS-56c would have a zero-albedo equilibrium temperature of T_eq_=332+/-50 K, and thus would be orbiting close to the habitable zone of HATS-56. Further radial-velocity follow-up, especially over the next two years, is needed to confirm the nature of HATS-56c.2019AJ....158...63Ehttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/158/63CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/AJ/155/112 : Radial velocities & light curves for HATS-43-HATS-46J/AJ/156/216 : Differential photometry & RVs of HATS-59 (Sarkis+, 2018)J/AJ/157/55 : RVs and light curves for HATS-60-HATS-69 (Hartman+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/158/63https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/158/63http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/158/63https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/158/63https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/158/63http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/158/63GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/158/63/table4Relative radial velocities and bisector spans for HATS-54-HATS-58recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (HATS-54-HATS-58)meta.id;meta.maincharBJDBarycentric Julian Date (G1)dtime.epochdoubleRV[-515.34/482.36] Radial velocity (1)m/sphys.veloc;pos.heliocentricfloate_RV[6.6/59] The 1{sigma} uncertainty in RV (2)m/sstat.errorfloatBS[-129/197] Bisector spanm/sphys.velocfloate_BS[6/77] The 1{sigma} uncertainty in BSm/sstat.errorfloatPhaseOrbital phasetime.phasedoubleInstInstrument used (FEROS or HARPS)instr.setupcharJ/AJ/158/63/table2Lightcurve data for HATS-54, HATS-55, HATS-56, HATS-57 and HATS-58InstInstrument (3)meta.id;instrcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSystem identifier (HATS-54-HATS-58)meta.id;pos.framecharBJDBarycentric Julian Date (G1)dtime.epochdoublemag[-0.05073/0.0465] Out-of-transit subtracted magnitude (1)magphot.mag;arith.diffdoublee_mag[0/0.02221] Uncertainty in magmagstat.error;phot.magdoubleomag[-0.0203/13.8777]? Raw magnitude in Filt (2)magphot.magdoublenullableFilt[RRc gri] Filter used in the observationinstr.setup;obschar