J/A+A/664/A94ivo://CDS.VizieR/J/A+A/664/A94doi:10.26093/cds/vizier.36640094CDSPsaridi A.Bouchy F.Lendl M.Grieves N.Stassun K.G.Carmichael T.,Gill S.Pena Rojas P.A.Gan T.Shporer A.Bieryla A.,Christiansen J.L.Crossfield I.J.M.Galland F. Hooton M.J.,Jenkins J.M.Jenkins J.SLatham D.WLund M.BRodriguez J.E,Ting E.BUdry S.Ulmer-Moll S.Wittenmyer R.AZhang Y.Zhou G.,Addison B.Cointepas M.Collins K.A.Collins K.I.Deline A.,Dressing C.D.Evans P.Giacalone S.Heitzmann A.Mireles I.,Mounzer D.Otegi J.Radford D.J.Rudat A.Schlieder J.E.,Schwarz R.P.Srdoc G.Stockdale C.Suarez O.Wright D.J.Zhao Y.2022-11-13T17:30:45Z2022-08-12T13:25:21ZCDS support team

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

cds-question@unistra.frmultiple-starsbrown-dwarfsexoplanetsphotometryradial-velocityvisible-astronomyThe detection and characterization of exoplanets and brown dwarfs around massive AF-type stars is essential to investigate and constrain the impact of stellar mass on planet properties. However, such targets are still poorly explored in radial velocity (RV) surveys because they only feature a small number of stellar lines and those are usually broadened and blended by stellar rotation as well as stellar jitter. As a result, the available information about the formation and evolution of planets and brown dwarfs around hot stars is limited. We aim to increase the sample and precisely measure the masses and eccentricities of giant planets and brown dwarfs transiting early-type stars detected by the Transiting Exoplanet Survey Satellite (TESS). We followed bright (V<12mag) stars with Teff>6200K that host giant companions (R>7R_{Earth}_) using ground-based photometric observations as well as high precision radial velocity measurements from the CORALIE, CHIRON, TRES, FEROS, and MINERVA-Australis spectrographs. In the context of the search for exoplanets and brown dwarfs around early-type stars, we present the discovery of three brown dwarf companions, TOI-629b, TOI-1982b, and TOI-2543b, and one massive planet, TOI-1107b. From the joint analysis of TESS and ground-based photometry in combination with high precision radial velocity measurements, we find the brown dwarfs have masses between 66 and 68M_Jup_, periods between 7.54 and 17.17 days, and radii between 0.95 and 1.11R_Jup_. The hot Jupiter TOI-1107b has an orbital period of 4.08 days, a radius of 1.30R_Jup_, and a mass of 3.35M_Jup_. As a by-product of this program, we identified four low-mass eclipsing components (TOI-288b, TOI-446b, TOI-478b, and TOI-764b). Both TOI-1107b and TOI-1982b present an anomalously inflated radius with respect to the age of these systems. TOI-629 is among the hottest stars with a known transiting brown dwarf. TOI-629b and TOI-1982b are among the most eccentric brown dwarfs. The massive planet and the three brown dwarfs add to the growing population of well-characterized giant planets and brown dwarfs transiting AF-type stars and they reduce the apparent paucity.2022A&A...664A..94Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/664/A94CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/664/A94https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/664/A94http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/664/A94https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/664/A94https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/664/A94http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/664/A94GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/664/A94/stars (List of studied stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A94/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A94/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A94/stars?GETtext/xml+votable180.050000true155.6075833-82.21888060.0055555555555555566/4114 20745 22192 34281 36893 38268 44674 46959https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/664/A94?format=asciiOpticaldefaultJ/A+A/664/A94/starsList of studied starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar name (TOI-NNNN)meta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainONameOther name (TIC NNNNNNNNN)meta.idcharLCShow the light curvemeta.ref.urlcharFileName1Name of file with photometric datameta.id;meta.filecharRVShow the veocity curvemeta.ref.urlcharFileName2Name of file with radial velocity datameta.id;meta.filecharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/664/A94/lcs1Ground based photometric fluxes for TOI-1107 from ASTEP, Brierfield and LCOGTFluxNormalized raw fluxphot.flux;arith.ratiodoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDTime of observation in BJD_TDBdtime.epochdoublee_FluxError on Fluxstat.error;phot.fluxdoubleInstInstrument usedinstr.setupcharTargetName of the targetmeta.id;meta.maincharJ/A+A/664/A94/lcs2Ground based photometric fluxes for TOI-1982 from El Sauce, Hazelwood and LCOGTrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDTime of observation in BJD_TDBdtime.epochdoubleFluxNormalized raw fluxphot.flux;arith.ratiodoublee_FluxError on Fluxstat.error;phot.fluxdoubleInstInstrument usedinstr.setupcharTargetName of the targetmeta.id;meta.maincharJ/A+A/664/A94/rvs1Radial velocity time series of TOI-1107, TOI-629, TOI-1982 and TOI-2543 from CORALIE, MINERVA, TRES, FEROS and CHIRONrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDTime of observation in BJD_TDBdtime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricdoublee_RVUncertainty in RVkm/sstat.errordoubleInstInstrument usedinstr.setupcharTargetName of the targetmeta.id;meta.maincharJ/A+A/664/A94/rvs2Radial velocity time series of TOI-288, TOI-446, TOI-478 and TOI-764 from CORALIErecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDTime of observation in BJD_TDBdtime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricdoublee_RVUncertainty in RVkm/sstat.errordoubleInstInstrument usedinstr.setupcharTargetName of the targetmeta.id;meta.mainchar