Title: Photo-thermo-chemistry of hot Jupiters: application to HD 209458b
Authors: Venot, Olivia
Hébrard, Eric
Dobrijevic, Michel
Selsis, Franck
Hersant, Franck
Bounaceur, Roda
Bénilan, Yves
Gazeau, Marie-Claire
Fray, Nicolas
Issue Date: Oct-2011
Host Document: vol:6
Conference: European Planetary Science Congress - Division for Planetary Science Joint Meeting edition:6 location:Nantes, France date:2-7 October 2011
Article number: EPSC-DPS2011-439-1
Abstract: We have developed a new model to study the atmospheres of exoplanets, adapted to the high temperature and conditions of the atmospheres of hot Jupiters. Such a model appears essential to interpret recent and future observations, predict the composition and understand the formation and evolution of these planetary bodies. Results of a 1D thermo-photochemical model for HD 209458b are presented. An important problem of photochemical model is the lack of high temperature photochemical data. In order to improve this situation, we have begun a campaign of measurement of VUV absorption cross section at high temperature for H2O, CO2, CH4 and CO. We will present the influence of these new experimental data on the thermo-photochemical model.
Publication status: published
KU Leuven publication type: IMa
Appears in Collections:Institute of Astronomy

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