J/MNRAS/500/5420ivo://CDS.VizieR/J/MNRAS/500/5420doi:10.26093/cds/vizier.75005420CDSChen G.Palle E.Parviainen H.Wang H.van Boekel R.Murgas F.,Yan F.Bejar V.J.S.Casasayas-Barris N.Crouzet N.Esparza-Borges E.,Fukui A.Garai Z.Kawauchi K.Kurita S.Kusakabe N.de Leon J.P.,Livingston J.Luque R.Madrigal-Aguado A.Mori M.Narita N.,Nishiumi T.Oshagh M.Sanchez-Benavente M.Tamura M.Terada Y.,Watanabe N.2024-08-21T20:16:56Z2020-12-29T10:12:14ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsspectroscopyphotometryWe present the optical transmission spectrum of the hot Jupiter WASP-104b based on one transit observed by the blue and red channels of the DBSP spectrograph at the Palomar 200-inch telescope and 14 transits observed by the MuSCAT2 four-channel imager at the 1.52m Telescopio Carlos Sanchez. We also analyse 45 additional K2 transits, after correcting for the flux contamination from a companion star. Together with the transit light curves acquired by DBSP and MuSCAT2, we are able to revise the system parameters and orbital ephemeris, confirming that no transit timing variations exist. Our DBSP and MuSCAT2 combined transmission spectrum reveals an enhanced slope at wavelengths shorter than 630nm and suggests the presence of a cloud deck at longer wavelengths. While the Bayesian spectral retrieval analyses favour a hazy atmosphere, stellar spot contamination cannot be completely ruled out. Further evidence, from transmission spectroscopy and detailed characterisation of the host star's activity, is required to distinguish the physical origin of the enhanced slope.2021MNRAS.500.5420Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/500/5420CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/570/A64 : WASP-104b and WASP-106b photometry (Smith+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/500/5420https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/500/5420http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/500/5420https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/500/5420https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/500/5420http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/500/5420GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/MNRAS/500/5420/tmus2WASP-104 TCS/MuSCAT2 transit lightrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (TDB standard)dtime.epochdoubleFluxRelative fluxphot.flux;arith.ratiodoublee_FluxUncertainty of relative fluxstat.error;phot.fluxdoubleposXDrift of star on CCD in X directionpixpos.cartesian.x;instr.detdoubleposYDrift of star on CCD in Y directionpixpos.cartesian.y;instr.detdoublefwhmXFull width at half maximum in X directionpixspect.line.widthdoublefwhmYFull width at half maximum in Y directionpixspect.line.widthdoubleAirmassAirmass during observationobs.airMassdoubleNightStarting nighttime.startintBand[1/4] Band name (1)meta.codeintJ/MNRAS/500/5420/pbluewlcWASP-104 P200/DBSP-blue white light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (TDB standard)dtime.epochdoubleFluxRelative fluxphot.flux;arith.ratiodoublee_FluxUncertainty of relative fluxstat.error;phot.fluxdoubleposXDrift of star on CCD in dispersion directionpixpos.cartesian.x;instr.detdoubleposYDrift of star on CCD in spatial directionpixpos.cartesian.y;instr.detdoublefwhmXRelative change of full width at half maximum of the stellar absorption line profilepixarith.rate;spect.line.widthdoublefwhmYFull width at half maximum of the stellar spatial profilepixspect.line.widthdoubleAirmassAirmass during observationobs.airMassdoubleNightStarting nighttime.startintwave-leftWavelength at the left bordernmem.wlfloatwave-rightWavelength at the right bordernmem.wlfloatBandBand sequence (1)meta.codecharJ/MNRAS/500/5420/pblueslcWASP-104 P200/DBSP-blue spectroscopic light curvesNightStarting nighttime.startintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (TDB standard)dtime.epochdoubleFluxRelative fluxphot.flux;arith.ratiodoublee_FluxUncertainty of relative fluxstat.error;phot.fluxdoubleposXDrift of star on CCD in dispersion directionpixpos.cartesian.x;instr.detdoubleposYDrift of star on CCD in spatial directionpixpos.cartesian.y;instr.detdoublefwhmXRelative change of full width at half maximum of the stellar absorption line profilepixarith.rate;spect.line.widthdoublefwhmYFull width at half maximum of the stellar spatial profilepixspect.line.widthdoubleAirmassAirmass during observationobs.airMassdoublewave-leftWavelength at the left bordernmem.wlfloatwave-rightWavelength at the right bordernmem.wlfloatBandBand sequence (1)meta.codecharJ/MNRAS/500/5420/predwlcWASP-104 P200/DBSP-red white light curverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (TDB standard)dtime.epochdoubleFluxRelative fluxphot.flux;arith.ratiodoublee_FluxUncertainty of relative fluxstat.error;phot.fluxdoubleposXDrift of star on CCD in dispersion directionpixpos.cartesian.x;instr.detdoubleposYDrift of star on CCD in spatial directionpixpos.cartesian.y;instr.detdoublefwhmXRelative change of full width at half maximum of the stellar absorption line profilepixarith.rate;spect.line.widthdoublefwhmYFull width at half maximum of the stellar spatial profilepixspect.line.widthdoubleAirmassAirmass during observationobs.airMassdoubleNightStarting nighttime.startintwave-leftWavelength at the left bordernmem.wlfloatwave-rightWavelength at the right bordernmem.wlfloatBandBand sequence (1)meta.codecharJ/MNRAS/500/5420/predslcWASP-104 P200/DBSP-red spectroscopic light curveswave-leftWavelength at the left bordernmem.wlfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Date (TDB standard)dtime.epochdoubleFluxRelative fluxphot.flux;arith.ratiodoublee_FluxUncertainty of relative fluxstat.error;phot.fluxdoubleposXDrift of star on CCD in dispersion directionpixpos.cartesian.x;instr.detdoubleposYDrift of star on CCD in spatial directionpixpos.cartesian.y;instr.detdoublefwhmXRelative change of full width at half maximum of the stellar absorption line profilepixarith.rate;spect.line.widthdoublefwhmYFull width at half maximum of the stellar spatial profilepixspect.line.widthdoubleAirmassAirmass during observationobs.airMassdoubleNightStarting nighttime.startintwave-rightWavelength at the right bordernmem.wlfloatBandBand sequence (1)meta.codechar