J/A+A/688/A120ivo://CDS.VizieR/J/A+A/688/A120doi:10.26093/cds/vizier.36880120CDSSubjak J.Latham D.W.Quinn S.N.Berlind P.Calkins M.L.Esquerdo G.A.,Brahm R.Caballero J.A.Collins K.A.Guenther E.Janik J.Kabath P.,Schwarz R.P.Tan T.-G.Vanzi L.Zambelli R.Ziegler C.Jenkins J.M.,Mireles I.Seager S.Shporer A.Striegel S.Winn J.N.2024-11-29T20:04:36Z2024-08-09T09:06:16ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsspectroscopyradial-velocityvisible-astronomyThe present study confirms BD-14 3065b as a transiting planet-brown dwarf in a triple-star system, with a mass near the deuterium-burning boundary. BD-14 3065b has the largest radius observed within the sample of giant planets and brown dwarfs around post-main sequence stars. Its orbital period is 4.3 days and it transits a subgiant F-type star with a mass of M*=1.41+/-0.05M_{sun}_, a radius of R*=2.35+/-0.08R_{sun}_, an effective temperature of Teff=6935+/-90K, and a metallicity of -0.34+/-0.05dex. By combining TESS photometry with high-resolution spectra acquired with the TRES and Pucheros+ spectrographs, we measured a mass of Mp = 12.37+/-0.92M_Jup_ and a radius of Rp = 1.926+/-0.094R_Jup_. Our discussion of potential processes that could be responsible for the inflated radius led us to conclude that deuterium burning is a plausible explanation for the heating taking place in BD-14 3065b's interior. Detections of the secondary eclipse with TESS photometry enabled a precise determination of the eccentricity, ep=0.066+/-0.011, and reveal that BD-14 3065b has a brightness temperature of 3520+/-130K. With its unique characteristics, BD-14 3065b presents an excellent opportunity to study its atmosphere via thermal emission spectroscopy.2024A&A...688A.120Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/688/A120CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/688/A120https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/688/A120http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/688/A120https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/688/A120https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/688/A120http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/688/A120GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapAssociated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/688/A120OpticaldefaultJ/A+A/688/A120/listList of fits 2D spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintObs.dateObservation datestime.epoch;obsnullablesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar