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Science 28 June 1996:
Vol. 272. no. 5270, pp. 1919 - 1921
DOI: 10.1126/science.272.5270.1919

Reports

Atmospheric, Evolutionary, and Spectral Models of the Brown Dwarf Gliese 229 B

M. S. Marley, * D. Saumon, T. Guillot, R. S. Freedman, W. B. Hubbard, A. Burrows, J. I. Lunine

Theoretical spectra and evolutionary models that span the giant planet-brown dwarf continuum have been computed based on the recent discovery of the brown dwarf Gliese 229 B. A flux enhancement in the 4- to 5-micrometer wavelength window is a universal feature from jovian planets to brown dwarfs. Model results confirm the existence of methane and water in the spectrum of Gliese 229 B and indicate that its mass is 30 to 55 jovian masses. Although these calculations focus on Gliese 229 B, they are also meant to guide future searches for extrasolar giant planets and brown dwarfs.

M. S. Marley, Department of Astronomy, New Mexico State University, Box 30001, Department 4500, Las Cruces, NM 88003, USA.
D. Saumon, T. Guillot, W. B. Hubbard, J. I. Lunine, Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, USA.
R. S. Freedman, Sterling Software, NASA Ames Research Center, Moffett Field, CA 94035, USA.
A. Burrows, Departments of Physics and Astronomy, University of Arizona, Tucson, AZ 85721, USA.
* To whom correspondence should be addressed. E-mail: mmarley{at}nmsu.edu



THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Interiors of Giant Planets Inside and Outside the Solar System.
T. Guillot (1999)
Science 286, 72-77
   Abstract »    Full Text »
The Dusty Atmosphere of the Brown Dwarf Gliese 229B.
C. A. Griffith, R. V. Yelle, and M. S. Marley (1998)
Science 282, 2063-2067
   Abstract »    Full Text »
Brown Dwarfs: A Possible Missing Link Between Stars and Planets.
S. R. Kulkarni (1997)
Science 276, 1350-1354
   Abstract »    Full Text »



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Science. ISSN 0036-8075 (print), 1095-9203 (online)