Radiative Hydrodynamical Studies of Irradiated Atmospheres

Ian Dobbs-Dixon

doi:10.1017/s1743921308026495

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arXiv · 0807.4541

Radiative Hydrodynamical Studies of Irradiated Atmospheres

Ian Dobbs-Dixon

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Abstract

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 for planets with 1, 3, and 7 day periods. 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.

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Ian Dobbs-Dixon. 2008-07-28. Radiative Hydrodynamical Studies of Irradiated Atmospheres. https://doi.org/10.1017/s1743921308026495

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