Infrared Spectrum of the Cool Brown Dwarf Gl 229B

Details Infrared Spectrum of the Cool Brown Dwarf Gl 229B Infrared Spectrum of the Cool Brown Dwarf Gl 229B

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sci...270.1478o&link_type=abstract

Science, Volume 270, Issue 5241, pp. 1478-1479

Physics

185

Scientific paper

Spectroscopic measurements of a cool brown dwarf, GI 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 GI 229B is below 1000 kelvin. Features attributed to water vapor also indicate that GI 229B is much cooler than any known star.

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