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Middle-Infrared Observations of DENIS J0255-4700

Published online by Cambridge University Press:  26 May 2016

Michelle Creech-Eakman
Affiliation:
Jet Propulsion Laboratory, MS 171–113, 4800 Oak Grove Dr., Pasadena, CA 91109
Eugene Serabyn
Affiliation:
Jet Propulsion Laboratory, MS 171–113, 4800 Oak Grove Dr., Pasadena, CA 91109
Glenn S. Orton
Affiliation:
Jet Propulsion Laboratory, MS 169–237, 4800 Oak Grove Dr., Pasadena, CA 91109
Thomas L. Hayward
Affiliation:
Gemini Observatory, AURA/Casilla 603, La Serena, Chile

Abstract

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The first infrared photometry of an L-type brown dwarf, DENIS J0255-4700, includes N-band and narrow-band 8.8-μm detections, with upper limits in narrow-band 10.3 and 11.7 μm. Model-independent blackbody fits of existing data yield Teff = 1250 – 1750 K, with models favoring the lower end of that range. Dusty atmospheric models by Allard, Burrows and Marley which match the near-infrared photometry are not completely consistent with our mid-infrared photometry.

Type
Part 7. Atmospheres and Internal Structure
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

Allard, F. et al. 2001, ApJ, 556, 337.CrossRefGoogle Scholar
Basri, G. et al. 2000, ApJ, 538, 363.CrossRefGoogle Scholar
Burrows, A. et al. 2002, ApJ, 573, 304.CrossRefGoogle Scholar
Kirkpatrick, A. D. et al. 2000, AJ, 120, 447.CrossRefGoogle Scholar
Marley, M. et al. 2002, ApJ, 568, 335.CrossRefGoogle Scholar
Martin, E. et al. 1999, AJ, 118, 2466.CrossRefGoogle Scholar
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