Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 1 December 1995:
Vol. 270. no. 5241, pp. 1478 - 1479
DOI: 10.1126/science.270.5241.1478
Prev | Table of Contents | Next

Reports

Infrared Spectrum of the Cool Brown Dwarf Gl 229B

B. R. Oppenheimer,  S. R. Kulkarni (1),  K. Matthews,  T. Nakajima

Spectroscopic measurements of a cool brown dwarf, Gl 229B, reveal absorption features attributable to methane in the near infrared much like those of Jupiter. These features are not seen in any star. The presence of methane indicates that the surface temperature of Gl 229B is below 1000 kelvin. Features attributed to water vapor also indicate that Gl 229B is much cooler than any known star.


Palomar Observatory 105-24, California Institute of Technology, Pasadena, CA 91125, USA.
(1) To whom correspondence should be addressed.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Modeling Astrophysical Phenomena in the Laboratory with Intense Lasers.
B. A. Remington, D. Arnett, R. Paul, Drake, and H. Takabe (1999)
Science 284, 1488-1493
   Abstract »    Full Text »
A Search for Companions to Nearby Brown Dwarfs: The Binary DENIS-P J1228.2-1547.
E. L. Martín, W. Brandner, and G. Basri (1999)
Science 283, 1718-1720
   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 »
Discovery of a Low-Mass Brown Dwarf Companion of the Young Nearby Star G 196-3 .
R. Rebolo, M. R. Osorio, S. Madruga, V. J. Béjar, S. Arribas, and J. Licandro (1998)
Science 282, 1309-1312
   Abstract »    Full Text »
Isolated and Companion Young Brown Dwarfs in the Taurus and Chamaeleon Molecular Clouds.
M. Tamura, Y. Itoh, Y. Oasa, and T. Nakajima (1998)
Science 282, 1095-1097
   Abstract »    Full Text »
Water on the Sun: Line Assignments Based on Variational Calculations.
O. L. Polyansky, N. F. Zobov, S. Viti, J. Tennyson, P. F. Bernath, and L. Wallace (1997)
Science 277, 346-348
   Abstract »    Full Text »
Brown Dwarfs: A Possible Missing Link Between Stars and Planets.
S. R. Kulkarni (1997)
Science 276, 1350-1354
   Abstract »    Full Text »


To Advertise     Find Products

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