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Prospects of using simulations to study the photospheres of brown dwarfs

Published online by Cambridge University Press:  01 August 2006

Hans-Günter Ludwig
Hans-Günter Ludwig*
Affiliation:
CIFIST, GEPI, Observatoire de Paris-Meudon, 92195 Meudon, France email: Hans.Ludwig@obspm.fr
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Abstract

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We discuss prospects of using multi-dimensional time-dependent simulations to study the atmospheres of brown dwarfs and extrasolar giant planets, including the processes of convection, radiation, dust formation, and rotation. We argue that reasonably realistic simulations are feasible, however, separated into two classes of local and global models. Numerical challenges are related to potentially large dynamic ranges, and the treatment of scattering of radiation in multi-D geometries.

Keywords

Hydrodynamicsconvectionradiative transfermethods: numericalstars: atmospheresstars: low-massbrown dwarfs
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S239: Convection in Astrophysics , August 2006 , pp. 205 - 210
Copyright
Copyright © International Astronomical Union 2007

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