J/AJ/152/127ivo://CDS.VizieR/J/AJ/152/127doi:10.26093/cds/vizier.51520127CDSPenev K.Hartman J.D.Bakos G.A.Ciceri S.Brahm R.Bayliss D.,Bento J.Jordan A.Csubry Z.Bhatti W.de Val-Borro M.Espinoza N.,Zhou G.Mancini L.Rabus M.Suc V.Henning T.Schmidt B.Noyes R.W.,Lazar J.Papp I.Sari P.2017-06-20T13:16:07Z2017-02-02T10:00:14ZCDS support team

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

cds-question@unistra.frsolar-system-planetsmultiple-starsinfrared-photometryvisible-astronomybroad-band-photometryradial-velocityWe report the discovery by the HATSouth network of HATS-18b: a 1.980+/-0.077M_J_, 1.337_-0.049_^+0.102^R_J_ planet in a 0.8378day orbit, around a solar analog star (mass 1.037+/-0.047M_{Sun}_ and radius 1.020_-0.031_^+0.057^R_{Sun}_) with V=14.067+/-0.040mag. The high planet mass, combined with its short orbital period, implies strong tidal coupling between the planetary orbit and the star. In fact, given its inferred age, HATS-18 shows evidence of significant tidal spin up, which together with WASP-19 (a very similar system) allows us to constrain the tidal quality factor for Sun-like stars to be in the range of 6.5<~log_10_(Q^*^/k_2_)<~7 even after allowing for extremely pessimistic model uncertainties. In addition, the HATS-18 system is among the best systems (and often the best system) for testing a multitude of star-planet interactions, be they gravitational, magnetic, or radiative, as well as planet formation and migration theories.2016AJ....152..127Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/152/127CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/AJ/148/29 : Spectroscopy and photometry of HATS-4 (Jordan+, 2014)J/AJ/146/113 : Differential griz photometry of HATS-3 (Bayliss+, 2013)J/AJ/145/5 : Follow-up photometry of HATS-1 (Penev+, 2013)J/AJ/144/139 : HAT-P-39, HAT-P-40, and HAT-P-41 follow-up (Hartman+, 2012)J/ApJ/710/1724 : Follow-up photometry for HAT-P-11 (Bakos+, 2010)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/152/127https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/152/127http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/152/127https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/152/127https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/152/127http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/152/127GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfraredOpticaldefaultJ/AJ/152/127/table2Relative radial velocities and bisector span measurements of HATS-18e_RV[15/21] Uncertainty in RV (3)m/sstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (1)dtime.epochdoubleRV[-420.1/425] Relative radial velocity (2)m/sphys.veloc;pos.heliocentricfloatBS[-24/149] Bisector spanm/sphys.velocfloate_BS[16/24] Uncertainty in BSm/sstat.errorfloatPhase[0/1] Phasetime.phasedoubleInstInstrument (FEROS=Fiber-fed Extended Range Optical Spectrograph/MPG 2.2m)instr.bandwidthcharJ/AJ/152/127/table1Differential photometry of HATS-18recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDUTC Barycentric Julian date (BJD-2400000) (1)dtime.epochdoubleDmag[-0.073/0.0667] {Delta} magnitude observed in filter (2)magphot.mag;arith.diffdoublee_Dmag[0.0016/0.022] Uncertainty in Dmagmagstat.error;phot.mag;arith.diffdoubleomag[-0.009/13.8]? Raw, observed magnitude (3)magphot.magdoublenullableFlt[ir] Filter used in the observation (Sloan i, or Sloan r)instr.setup;obscharInstInstrument used in the observation (HS, LCOGT1m/SBIG, or LCOGT1m/sinistro) (4)instr.setup;obschar