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Constraints on the possible atmospheres on TRAPPIST-1 b: insights from 3D climate modeling
Alice Maurel, Martin Turbet, Elsa Ducrot, J\'er\'emy Leconte, Guillaume Chaverot, Gwenael Milcareck, Alexandre Revol, Benjamin Charnay, J. Thomas Fauchez, Micha\"el Gillon, Alexandre Mechineau, Emeline Bolmont, Ehouarn Millour, Franck Selsis, Jean-Philippe Beaulieu, Pierre Drossart
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Constraints on the possible atmospheres on TRAPPIST-1 b: insights from 3D climate modeling
JWST observations of the secondary eclipse of TRAPPIST-1 b at 12.8 and 15 microns revealed a very bright dayside. These measurements are consistent with an absence of atmosphere. Previous 1D atmospheric modeling also excludes -- at first sight -- CO2-rich atmospheres. However, only a subset of the possible atmosphere types has been explored and ruled out to date. Recently, a full thermal phase curve of the planet at 15 microns with JWST has also been observed, allowing for more information on t…