J/A+A/567/A8ivo://CDS.VizieR/J/A+A/567/A8doi:10.26093/cds/vizier.35670008CDSChen G.van Boekel R.Wang H.Nikolov N.Seemann U.Henning T.2017-07-12T15:03:12Z2014-07-04T09:28:28ZCDS support team

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

cds-question@unistra.frmultiple-starssolar-system-planetsphotometryWe aim to construct a spectral energy distribution (SED) for the emission from the dayside atmosphere of the hot Jupiter WASP-46b and to investigate its energy budget. We observed a secondary eclipse of WASP-46b simultaneously in the g'r'i'z'JHK bands using the GROND instrument on the MPG/ESO 2.2m telescope. Eclipse depths of the acquired light curves were derived to infer the brightness temperatures at multibands that cover the SED peak. We report the first detection of the thermal emission from the dayside of WASP-46b in the K band at 4.2-sigma level and tentative detections in the H (2.5-sigma) and J (2.3-sigma) bands, with flux ratios of 0.253^+0.063^_-0.060_%, 0.194+/-0.078%, and 0.129+/-0.055%, respectively. The derived brightness temperatures (2306^+177^_-187_K, 2462^+245^_-302_K, and 2453^+198^_-258_K, respectively) are consistent with an isothermal temperature profile of 2386K, which is significantly higher than the dayside-averaged equilibrium temperature, indicative of very poor heat redistribution efficiency. We also investigate the tentative detections in the g'r'i' bands and the 3-sigma upper limit in the z' band, which might indicate the existence of reflective clouds if these tentative detections do not arise from systematics.2014A&A...567A...8Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/567/A8CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/MNRAS/430/2932 : WASP-44 griz light curves (Mancini+, 2013)J/MNRAS/434/1300 : WASP-15 and WASP-16 light curves (Southworth+, 2013)J/MNRAS/436/2 : Transits of WASP-19b (Mancini+, 2013)J/A+A/563/A40 : WASP-43b g'r'i'z'JHK light curves (Chen+, 2014)J/A+A/564/A6 : NIR emission from the dayside of WASP-5b (Chen+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/567/A8https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/567/A8http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/567/A8https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/567/A8https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/567/A8http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/567/A8GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/567/A8/occCombined table from original tablesAirM[1.12/1.4] Airmassobs.airMassfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBand[grizJHK] Observed bandinstr.bandpasscharBJDBarycentric Julian Date (TDB standard)dtime.epochdoubleFc[0.982/1.012] Corrected relative fluxphot.flux;arith.ratiofloate_Fc[0.0009/0.0053] Corrected flux errorstat.errorfloatFr[0.978/1.015] Raw relative fluxphot.flux;arith.ratiofloate_Fr[0.0009/0.0053] Raw flux errorstat.errorfloatdX[-4.4/3.5] Relative position drift in X directionpos.cartesian.x;instr.detfloatdY[-3.4/3.4] Relative position drift in Y directionpos.cartesian.y;instr.detfloatFWHMX[2.4/18.2] FWHM in X directionphys.angSizefloatFWHMY[2.1/17.8] FWHM in Y directionphys.angSizefloat