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Modelling extrasolar planetary atmospheres

Published online by Cambridge University Press:  21 October 2010

France Allard
France Allard*
Affiliation:
Centre de Recherche Astrophysique de Lyon, UMR 5574: CNRS, Université de Lyon, École Normale Supérieure de Lyon, 46 allée d'Italie, F-69364 Lyon Cedex 07, France email: fallard@ens-lyon.fr
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Abstract

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The atmospheres of close-in Extrasolar Giant Planets (EGPs) experience important stellar radiation, raising the question of the heat redistribution around the planetary surface and of the importance of photochemistry effects for their spectral properties. They experience mass loss via quasi-thermal escape of their lightest elements. They rotate and experience tidal effects. Model atmospheres struggle to include even part of this complexity. Some address the dynamics of the atmospheres as a whole (3D) as subjected to rotation, or as patches of the surface (wind studies), compromising on the details of the composition and radiative/convective properties. Others solve the composition and radiative/convective properties, compromising on dynamical effects such as rotation. In this paper, we review existing model atmospheres for EGPs, and present the first high spatial resolution local (as opposed to global) 2/3D radiation hydrodynamic simulations of EGP atmospheres including dust cloud formation.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Highlights H15: Highlights of Astronomy , November 2009 , pp. 695 - 696
Copyright
Copyright © International Astronomical Union 2010

References

Allard, F., Hauschildt, P. H., Alexander, D. R., Tamanai, A., & Schweitzer, A. 2001, ApJ 556, 357CrossRefGoogle Scholar
Barman, T. 2007, ApJ (Letters) 661, L191CrossRefGoogle Scholar
Barman, T. S., Hauschildt, P. H., & Allard, F. 2001, ApJ 556, 885CrossRefGoogle Scholar
Barman, T. S., Hauschildt, P. H., & Allard, F. 2005, ApJ 632, 1132CrossRefGoogle Scholar
Barman, T. S., Hauschildt, P. H., Schweitzer, A., Stancil, P. C., Baron, E., & Allard, F. 2002, ApJ (Letters) 569, L51CrossRefGoogle Scholar
Cooper, C. S. & Showman, A. P. 2006, ApJ 649, 1048CrossRefGoogle Scholar
Fortney, J., Cooper, C., Showman, A., Marley, M., & Freedman, R. 2006, ApJ 652, 746CrossRefGoogle Scholar
Freytag, B., Allard, F., Ludwig, H.-G., Homeier, D., & Steffen, M. 2009a, A&A, in pressGoogle Scholar
Freytag, B., Allard, F., Ludwig, H.-G., Homeier, D., & Steffen, M. 2009b, Proceedings of the Conference “Molecules in the Atmospheres of Extrasolar Planets” held at Paris Observatory, November 19, 2008.Google Scholar
Hauschildt, P. H., Allard, F., & Baron, E. 1999, ApJ 512, 377CrossRefGoogle Scholar
Iro, N., Bézard, B., & Guillot, T. 2005, A&A 436, 719Google Scholar
Saumon, D., Marley, M. S., Cushing, M. C., Leggett, S. K., Roellig, T. L., Lodders, K., & Freedman, R. S. 2006, ApJ 647, 552CrossRefGoogle Scholar
Showman, A. P., Menou, K., & Cho, J. Y. K. 2008, ASP Conference Series Vol. 398, 419Google Scholar