Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-04T21:27:46.597Z Has data issue: false hasContentIssue false
  • English
  • Français

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: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

References

Ackerman, A.S. & Marley, M.S. 2001, ApJ 556, 872CrossRefGoogle Scholar
Allard, F., Hauschildt, P.H., Alexander, D.R., Tamanai, A. & Schweitzer, A. 2001, ApJ 556, 357CrossRefGoogle Scholar
Burkert, A., Lin, D.N.C., Bodenheimer, P.H., Jones, C.A. & Yorke, H.W. 2005, ApJ 618, 512CrossRefGoogle Scholar
Burrows, A., Sudarsky, D. & Hubeny, I. 2006, ApJ 640, 1063CrossRefGoogle Scholar
Cho, J.Y.-K., Menou, K., Hansen, B.M.S. & Seager, S. 2003, ApJ 587, 117CrossRefGoogle Scholar
Helling, Ch., 2005, in: Proceeding of he workshop on Interdisciplinary Aspects of Turbulence, Garching: Max-Planck-Institut für Astrophysik, eds.: Kupka, F., Hillebrandt, W., p. 152Google Scholar
Helling, Ch., Klein, R., Woitke, P., Nowak, U. & Sedlmayr, E. 2004, A&A 423, 657Google Scholar
Rossow, R.W. 1978, Icarus 36, 1CrossRefGoogle Scholar
Showman, A.P. & Guillot, T. 2002, A&A 385, 166Google Scholar
Tsuji, T. 2002, ApJ 575, 264CrossRefGoogle Scholar
Woitke, P. & Helling, Ch. 2003, A&A 399, 297Google Scholar