J/A+A/668/A17ivo://CDS.VizieR/J/A+A/668/A17doi:10.26093/cds/vizier.36680017CDSScandariato G.Singh V.Kitzmann D.Lendl M.Brandeker A.Bruno G.,Bekkelien A.Benz W.Gutermann P.Maxted P.F.L.Bonfanti A.Charnoz S.,Fridlund M.Heng K.Hoyer S.Pagano I.Persson C.M.Salmon S.,Van Grootel V.Wilson T.G.Asquier J.Bergomi M.Gambicorti L.,Hasiba J.Alibert Y.Alonso R.Anglada G.Barczy T.,Barrado y Navascues D.Barros S.C.C.Baumjohann W.Beck M.Beck T.,Billot N.Bonfils X.Broeg C.Cabrera J.Collier Cameron A.,Csizmadia Sz.Davies M.B.Deleuil M.Deline A.Delrez L.Demangeon O.,Demory B.-O.Erikson A.Fortier A.Fossati L.Gandolfi D.Gillon M.,Guedel M.Isaak K.G.Kiss L.L.Laskar J.Lecavelier des Etangs A.,Lovis C.Magrin D.Nascimbeni V.Olofsson G.Ottensamer R.Palle E.,Parviainen H.Peter G.Piotto G.Pollacco D.Queloz D.Ragazzoni R.,Rando N.Rauer H.Ribas I.Santos N.C.Segransan D.Serrano L.M.,Simon A.E.Smith A.M.S.Sousa S.G.Steller M.Szabo Gy.M.Thomas N.,Udry S.Ulmer B.Walton N.2024-11-06T20:01:41Z2022-11-29T08:58:06ZCDS support team

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

cds-question@unistra.frmultiple-starslate-type-starsexoplanetsphotometryvisible-astronomyObservations of the phase curves and secondary eclipses of extrasolar planets provide a window on the composition and thermal structure of the planetary atmospheres. For example, the photometric observations of secondary eclipses lead to the measurement of the planetary geometric albedo A_g, which is an indicator of the presence of clouds in the atmosphere.We aimed to measure the A_g_ in the optical domain of WASP-43b, a moderately irradiated giant planet with an equilibrium temperature of ~1400K .To this purpose, we analyzed the secondary eclipse light curves collected by CHEOPS, together with TESS observations of the system and the publicly available photometry obtained with HST WFC3/UVIS. We also analyze the archival infrared observations of the eclipses and retrieve the thermal emission spectrum of the planet. By extrapolating the thermal spectrum to the optical bands, we correct the optical eclipses for thermal emission and derive the optical A_g_. The fit of the optical data led to a marginal detection of the phase curve signal, characterized by an amplitude of 160+/-60ppm and 80^+60^_-50_ppm in the CHEOPS and TESS passband respectively, with an eastward phase shift of ~50 degree (1.5{sigma} detection). The analysis of the infrared data suggests a non-inverted thermal profile and solar-like metallicity. The combination of optical and infrared analysis allows us to derive an upper limit for the optical albedo of A_g_<0.087 with a confidence of 99.9%. Our analysis of the atmosphere of WASP-43b places this planet in the sample of irradiated hot Jupiters, with monotonic temperature-pressure profile and no indication of condensation of reflective clouds on the planetary dayside.In this table we report the CHEOPS photometry of WASP-43 extracted by the PIPE pipeline and detrended as discussed in the paper.2022A&A...668A..17Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/668/A17CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/563/A41 : WASP-43 OSIRIS transmission spectroscopy (Murgas+, 2014)J/AJ/161/269 : WASP-43 HST WFC3/UVIS normalized light curve (Fraine+, 2021)J/AJ/162/210 : Transit Time Vartiations (TTVs) of WASP-43 (Davoudi+, 2021)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/668/A17https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/668/A17http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/668/A17https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/668/A17https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/668/A17http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/668/A17GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/668/A17/lcCHEOPS photometry of WASP-43 extracted by the PIPE photometry and detrendedID[1/9] Visit IDmeta.idintBJDTimestamps of the light curve (TDB)dtime.epochdoubleFluxPhotometry extracted by the PIPE pipelinephot.flux.density;em.optdoublee_FluxPhotometric uncertainties on Fluxstat.error;phot.fluxdoubleFlag[0/24] Quality flag assigned by the pipelinemeta.code.errorintNFlux? Light curve after detrending and normalizationmeta.notedoublenullablee_NFlux? Photometric uncertainties on nFluxstat.errordoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint