J/A+A/637/A36ivo://CDS.VizieR/J/A+A/637/A36doi:10.26093/cds/vizier.36370036CDSBourrier V.Kitzmann D.Kuntzer T.Nascimbeni V.Lendl M.Lavie B.,Hoeijmakers H.J.Pino L.Ehrenreich D.Heng K.Allart R.Cegla H.M,Dumusque X.Melo C.Astudillo-Defru N.Caldwell D.A.Cretignier M.,Giles H.Henze C.E.Jenkins J.Lovis C.Murgas F.Pepe F.,Ricker G.R.Rose M.E.Seager S.Segransan D.Suarez-Mascareno A.,Udry S.Vanderspek R.Wyttenbach A.2020-10-08T08:46:03Z2020-05-08T09:05:04ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsphotometryWe present the analysis of TESS optical photometry of WASP-121b, which reveals the phase curve of this transiting ultra-hot Jupiter. Its hotspot is located at the sub-stellar point, showing inefficient heat transport from the dayside (2870+/-50K) to the nightside (<2500K at 3{sigma}) at the altitudes probed by TESS. The TESS eclipse depth, measured at the shortest wavelength to date for WASP-121b, confirms the strong deviation from blackbody planetary emission. Our atmospheric retrieval on the complete emission spectrum supports the presence of a temperature inversion, which can be explained by the presence of VO and possibly TiO and FeH. The strong planetary emission at short wavelengths could arise from an H^-^ continuum.2020A&A...637A..36Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/637/A36CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/623/A57 : WASP-121b Swift UVOT near-UV transit observations (Salz+, 2019)J/A+A/625/A80 : WASP-121b secondary eclipse in 2MASS K band (Kovacs+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/637/A36https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/637/A36http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/637/A36https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/637/A36https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/637/A36http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/637/A36GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/637/A36/lccurvePhotometry of WASP-121recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime relative to the mid-transit of WASP-121bhtime.epochdoublePhotNormalized photometrymeta.id;photdoublee_PhotError on normalized photometrystat.errordouble