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Radiative Hydrodynamical Studies of Irradiated Atmospheres

Published online by Cambridge University Press:  01 May 2008

Ian Dobbs-Dixon*
Affiliation:
Department of Physics, McGill University, Montreal, Canada email: iandd@physics.mcgill.ca
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Abstract

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Transiting planets provide a unique opportunity to study the atmospheres of extra-solar planets. Radiative hydrodynamical models of the atmosphere provide a crucial link between the physical characteristics of the atmosphere and the observed properties. Here I present results from 3D simulations which solve the full Navier-Stokes equations coupled to a flux-limited diffusion treatment of radiation transfer. Variations in opacity amongst models leads to a variation in the temperature differential across the planet, while atmospheric dynamics becomes much more variable at longer orbital periods. I also present 3D radiative simulations illustrating the importance of distinguishing between optical and infrared opacities.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2009

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