J/AJ/165/268ivo://CDS.VizieR/J/AJ/165/268CDSVowell N.Rodriguez J.E.Quinn S.N.Zhou G.Vanderburg A.Mann A.W.,Hooton M.J.Stassun K.G.Howard S.Bieryla A.Latham D.W.,Howell S.B.Guillot T.Ziegler C.Collins K.A.Carmichael T.W.,Jenkins J.M.Shporer A.ABE L.Bendjoya P.Bush J.L.Buttu M.,Collins K.I.Eastman J.D.Fields M.J.Gasparetto T.Gunther M.N.,Kostov V.B.Kraus A.L.Lester K.V.Levine A.M.Littlefield C.,Marie-Sainte W.Mekarnia D.Osborn H.P.Rapetti D.Ricker G.R.,Seager S.Sefako R.Srdoc G.Suarez O.Torres G.Triaud A.H.M.J.,Vanderspek R.Winn J.N.2023-12-20T08:40:55Z2023-11-13T07:17:02ZCDS support team

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

cds-question@unistra.frb-starsbrown-dwarfsvisible-astronomyspectroscopyinfrared-photometryradial-velocityWe present the discovery and characterization of HIP33609b, a transiting warm brown dwarf orbiting a late B-star, discovered by NASA's Transiting Exoplanet Survey Satellite as TOI-588b. HIP33609b is a large (Rb=1.580_-0.070_^+0.074^RJup) brown dwarf on a highly eccentric (e=0.560_-0.031_^+0.029^) orbit with a 39days period. The host star is a bright (V=7.3mag), Teff=10400_-660_^+800^K star with a mass of M*=2.383_-0.095_^+0.10^M{sun} and radius of R*=1.863_-0.082_^+0.087^R{sun}, making it the hottest transiting brown dwarf host star discovered to date. We obtained radial velocity measurements from the CHIRON spectrograph confirming the companion's mass of Mb=68.0_-7.1_^+7.4^MJup as well as the host star's rotation rate (vsini*=55.6{+/-}1.8km/s). We also present the discovery of a new comoving group of stars, designated as MELANGE-6, and determine that HIP33609 is a member. We use a combination of rotation periods and isochrone models fit to the cluster members to estimate an age of 150{+/-}25Myr. With a measured mass, radius, and age, HIP33609b becomes a benchmark for substellar evolutionary models.2023AJ....165..268Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/165/268CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/259 : The Tycho-2 Catalogue (Hog+ 2000)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)II/311 : WISE All-Sky Data Release (Cutri+ 2012)J/other/A+ARV/18.67 : Accurate masses and radii of normal stars (Torres+, 2010)J/ApJ/710/1724 : Follow-up photometry for HAT-P-11 (Bakos+, 2010)J/AJ/142/19 : Speckle observations of KOI (Howell+, 2011)J/other/Nat/486.375 : Stellar parameters of KOI stars (Buchhave+, 2012)J/ApJ/761/123 : KELT-1 photometry and spectroscopy follow-up (Siverd+, 2012)J/A+A/553/A49 : WASP-19b secondary eclipses (Abe+, 2013)J/ApJ/788/92 : Hot Jupiter Kepler-13Ab planet's occultation (Shporer+, 2014)J/ApJ/822/86 : False positive proba for Q1-Q17 DR24 KOIs (Morton+, 2016)J/AJ/152/113 : Pleiades members K2 light curves. I. Periods (Rebull+, 2016)J/AJ/152/180 : Bolometric fluxes eclipsing binaries Tycho-2 (Stassun+, 2016)J/AJ/152/136 : Follow-up photometry and spectroscopy of KELT-17 (Zhou+, 2016)J/A+A/600/A30 : Limb-darkening for TESS satellite (Claret, 2017)J/AJ/153/136 : Planets & their host with Gaia parallaxes (Stassun+, 2017)J/A+A/606/A73 : MASCARA-1b (HD201585) light curves and spectra (Talens+, 2017)J/MNRAS/477/3406 : HATS-39b, 40b, 41b and 42b transit data (Bento+, 2018)J/AJ/156/102 : TESS Input Catalog and Candidate Target List (Stassun+, 2018)J/AJ/158/122 : Localstructure & star formation history of MW (Kounkel+, 2019)J/AJ/158/141 : Differential photometry & RVs HAT-P-69 &HAT-P-70 (Zhou+, 2019)J/AJ/159/255 : Obs & radial velocity of WASP-150 & WASP-176 (Cooke+, 2020)J/A+A/636/A98 : WASP-18A, WASP-19, WASP-77A photometry (Cortes-Zuleta+, 2020)J/AJ/159/19 : SOAR TESS survey. I. (Ziegler+, 2020)J/AJ/162/292 : Radial velocity & transit photometry TOI-1431 (Addison+, 2021)J/AJ/161/97 : Radial Velocities of TOI-811 and TOI-852 (Carmichael+, 2021)J/A+A/652/A127 : 13-150MJup eclipsing binaries transiting comp (Grieves+, 2021)J/ApJS/254/39 : Exoplanet candidates from TESS first 2yr obs (Guerrero+, 2021)J/AJ/162/75 : Speckle obs TESS exoplanet host stars. II. (Lester+, 2021)J/AJ/162/176 : The solar neighborhood. XLVIII. (Paredes+, 2021)J/ApJ/921/167 : Rotators in Praesepe with K2 LCs & Gaia EDR3 (Rampalli+, 2021)J/AJ/161/171 : THYME. V. Discovering stellar association (Tofflemire+, 2021)J/A+A/648/A71 : TESS optical phase curve of KELT-1b (von Essen+, 2021)J/AJ/163/275 : Theia 456; a stellar stream in Milky Way disk (Andrews+, 2022)J/AJ/164/88 : THYME. VIII. MELANGE-3 candidate members (Barber+, 2022)J/A+A/658/A75 : MASCARA-1 b occultation & transit light curves (Hooton+, 2022)J/AJ/163/156 : THYME. VI. TOI-1227 radial velocity (Mann+, 2022)J/AJ/163/228 : Limb-darkening coefficients 176 TESS exoplanets (Patel+, 2022)J/A+A/664/A94 : 8 TOI RV curves and 2 TOI light curves (Psaridi+, 2022)J/AJ/164/70 : TESS Grand Unified HotJupiter Survey I 10 planets (Yee+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/165/268https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/165/268http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/165/268https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/165/268https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/165/268http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/165/268GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/165/268/fig6 (Rotation periods of candidate members of MELANGE-6 as a function of BP-RP color)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/165/268/fig6?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/165/268/fig6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/165/268/fig6?GETtext/xml+votable180.050000true104.7498583-47.0233670.0055555555555555565/9775 9786 9859 9863 9869 9874 9881 9883 9893-9894 6/38967 39008 39014 39016-39017 39020 39023 39025 39028 39033 39035 39038 39059 39061-39063 39067-39069 39071 39079 39085 39087-39088 39090-39091 39093 39095 39097-39099 39104 39106-39107 39109 39111-39113 39115-39116 39118 39120 39122-39123 39125-39128 39130-39131 39133 39136-39138 39141-39143 39149 39151-39154 39159-39161 39163-39164 39166 39210-39211 39297 39299 39428 39431 39435 39440 39444 39446 39448 39450-39451 39457 39459 39461 39467-39468 39473-39475 39480-39482 39484 39486-39489 39492-39493 39495 39500 39504 39506-39507 39512-39514 39517 39521-39523 39528 39530 39537-39538 39540 39544-39546 39553 39555-39556 39559 39563-39564 39567 39569-39570 39580 39582 39589 39601 39619-39621 39624 39680-39682 396881.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/165/268?format=asciiOpticalInfrareddefaultJ/AJ/165/268/table2Radial velocity measurements for HIP 33609 systemrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJD[2458872/2459521e] Barycentric Julian Date at TBDtime.epochdoubleRVel[26993/33897] Radial velocitym/sspect.dopplerVelocfloate_RVel[591/1782] Error on RVelm/sstat.error;spect.dopplerVelocfloatJ/AJ/165/268/fig6Rotation periods of candidate members of MELANGE-6 as a function of BP-RP colorBpRp[-0.13/4.02] Gaia DR3 (Bp-Rp) colormagphot.color;em.opt.B;em.opt.RfloatVoff[0/5] Relative velocity offsetkm/sphys.veloc;arith.difffloatProt[0.19/24.2]? Rotational perioddtime.perioddoublenullableQ? Quality flag from Rampalli+, 2021, J/ApJ/921/167 (1)meta.code.qualintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTICTESS Input Catalog identifiermeta.id;meta.mainlongRAJ2000[91/118] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-57/-38] Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainGmag[5.35/20.5] Gaia DR3 G band magnitudemagphot.mag;em.opt.Vfloat