J/A+A/635/A205ivo://CDS.VizieR/J/A+A/635/A205doi:10.26093/cds/vizier.36350205CDSBourrier V.Ehrenreich D.Lendl M.Cretignier M.Allart R.Dumusque X.,Cegla H.MSuarez-Mascareno A.Wyttenbach A.Hoeijmakers H.J.Melo C.,Kuntzer T.Astudillo-Defru N.Giles H.Heng K.Kitzmann D.Lavie B.,Lovis C.Murgas F.Nascimbeni V.Pepe F.Pino L.Segransan D.Udry S.2020-05-19T08:48:45Z2020-04-03T06:11:21ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsphotometryUltra-hot Jupiters offer interesting prospects for expanding our theories on dynamical evolution and the properties of extremely irradiated atmospheres. In this context, we present the analysis of new optical spectroscopy for the transiting ultra-hot Jupiter WASP-121b. We first refine the orbital properties of WASP-121b, which is on a nearly polar (obliquity Psi^North^=88.1+/-0.25{deg} or Psi^South^=91.11+/-0.20{deg}) orbit, and exclude a high differential rotation for its fast-rotating (P<1.13-days), highly inclined (i*^North_=8.1^+3.0^_-2.6_{deg} or i*_South_=171.9^+2.5^_-3.4_{deg}) star. We then present a new method that exploits the reloaded Rossiter-McLaughlin technique to separate the contribution of the planetary atmosphere and of the spectrum of the stellar surface along the transit chord. Its application to HARPS transit spectroscopy of WASP-121b reveals the absorption signature from metals, likely atomic iron, in the planet atmospheric limb. The width of the signal (14.3+/-1.2km/s) can be explained by the rotation of the tidally locked planet. Its blueshift (-5.2+/-0.5km/s) could trace strong winds from the dayside to the nightside, or the anisotropic expansion of the planetary thermosphere.2020A&A...635A.205Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/635/A205CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/623/A57 : WASP-121 b Swift UVOT near-UV transit observations (Salz+ 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/635/A205https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/635/A205http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/635/A205https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/635/A205https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/635/A205http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/635/A205GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/635/A205/20140119EulerCam photometry of WASP-121 during transit on 19 Jan. 2014recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Date (HJD-2450000)dtime.epochdoublePhotNormalized raw photometryphot.flux;arith.ratiodoublee_PhotError on normalized raw photometrystat.errordoubleFitComplete model fitted to the normalized raw photometrystat.fit.paramdoubleBaseParametric baseline component of the photometry modelstat.fit.paramdoubleCompTransit component of the photometry modelstat.fit.paramdoublePhotcNormalized photometry corrected for the baseline componentphot.flux;arith.ratiodoubleJ/A+A/635/A205/20140123EulerCam photometry of WASP-121 during transit on 23 Jan. 2014recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Date (HJD-2450000)dtime.epochdoublePhotNormalized raw photometryphot.flux;arith.ratiodoublee_PhotError on normalized raw photometrystat.errordoubleFitComplete model fitted to the normalized raw photometrystat.fit.paramdoubleBaseParametric baseline component of the photometry modelstat.fit.paramdoubleCompTransit component of the photometry modelstat.fit.paramdoublePhotcNormalized photometry corrected for the baseline componentphot.flux;arith.ratiodoubleJ/A+A/635/A205/20171231EulerCam photometry of WASP-121 during transit on 31 Dec. 2017recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Date (HJD-2450000)dtime.epochdoublePhotNormalized raw photometryphot.flux;arith.ratiodoublee_PhotError on normalized raw photometrystat.errordoubleFitComplete model fitted to the normalized raw photometrystat.fit.paramdoubleBaseParametric baseline component of the photometry modelstat.fit.paramdoubleCompTransit component of the photometry modelstat.fit.paramdoublePhotcNormalized photometry corrected for the baseline componentphot.flux;arith.ratiodoubleJ/A+A/635/A205/20180114EulerCam photometry of WASP-121 during transit on 14 Jan. 2018recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Date (HJD-2450000)dtime.epochdoublePhotNormalized raw photometryphot.flux;arith.ratiodoublee_PhotError on normalized raw photometrystat.errordoubleFitComplete model fitted to the normalized raw photometrystat.fit.paramdoubleBaseParametric baseline component of the photometry modelstat.fit.paramdoubleCompTransit component of the photometry modelstat.fit.paramdoublePhotcNormalized photometry corrected for the baseline componentphot.flux;arith.ratiodoubleJ/A+A/635/A205/ccf-maskCustom CCF mask of WASP-121recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLeftLeft wavelength boundary of the mask lines0.1nmem.wldoubleRightRight wavelength boundary of the mask lines0.1nmem.wldoubleWeightWeight of the mask linesstat.weight;phys.atmol.weightdouble