J/A+A/579/A113ivo://CDS.VizieR/J/A+A/579/A113doi:10.26093/cds/vizier.35790113CDSNascimbeni V.Mallonn M.Scandariato G.Pagano I.Piotto G.Micela G.,Messina S.Leto G.Strassmeier K.G.Bisogni S.Speziali R.2017-07-04T07:09:13Z2015-08-28T10:04:29ZCDS support team

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

cds-question@unistra.frmultiple-starssolar-system-planetsinfrared-photometryvisible-astronomybroad-band-photometryThe atmospheric composition and vertical structure of the super-Earth GJ 1214b has been a subject of debate since its discovery in 2009. Recent studies have indicated that high-altitude clouds might mask the lower layers. However, some data points that were gathered at different times and facilities do not fit this picture, probably because of a combination of stellar activity and systematic errors. We observed two transits of GJ 1214b with the Large Binocular Camera, the dual-channel camera at the Large Binocular Telescope. For the first time, we simultaneously measured the relative planetary radius k=R_p_/R_*_ at blue and red optical wavelengths (B+R), thus constraining the Rayleigh scattering on GJ 1214b after correcting for stellar activity effects. To the same purpose, a long-term photometric follow-up of the host star was carried out with WiFSIP at STELLA, revealing a rotational period that is significantly longer than previously reported. Our new unbiased estimates of k yield a flat transmission spectrum extending to shorter wavelengths, thus confirming the cloudy atmosphere scenario for GJ 1214b.2015A&A...579A.113Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/579/A113CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/559/A32 : Light curves of GJ3470b (Nascimbeni+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/579/A113https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/579/A113http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/579/A113https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/579/A113https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/579/A113http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/579/A113GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfraredOpticaldefaultJ/A+A/579/A113/photomLarge Binocular Telescope photometry ofrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Day (TDB-based)dtime.epochdoubleFltrSimbad column added by the CDSmeta.code;instr.filtercharmagNormalized magnitudemagphot.magdoublee_magError on magnitudemagstat.error;phot.magdouble