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News of Effective Temperatures of L Dwarfs

Published online by Cambridge University Press:  26 May 2016

Andreas Schweitzer ,
John E. Gizis ,
France Allard  and
Peter H. Hauschildt
Andreas Schweitzer
Affiliation:
Dept. of Physics & Astronomy, Univ. of Georgia, Athens, GA 30602
John E. Gizis
Affiliation:
Dept. of Physics & Astronomy, Univ. of Delaware, Newark, DE 19716
France Allard
Affiliation:
CRAL, ENS Lyon, 69364, France
Peter H. Hauschildt
Affiliation:
Dept. of Physics & Astronomy, Univ. of Georgia, Athens, GA 30602

Abstract

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In this work we report recent spectral analyses of L dwarfs and our success in measuring Teff and log(g). Using dust filled atmospheres for early L dwarfs and rained out atmospheres for late L dwarfs we could derive Teff of 1400 to 2000 K for L8 to M9.5 dwarfs respectively. We also give an outlook what we can achieve with future models that are improving the fits to intermediate L dwarfs and IR spectra.

Type
Part 7. Atmospheres and Internal Structure
Information
Symposium - International Astronomical Union , Volume 211: Brown Dwarfs , 2003 , pp. 403 - 404
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

Allard, F., Hauschildt, P. H., Alexander, D. R., Tamanai, A., & Schweitzer, A. 2001, ApJ, 556, 357 CrossRefGoogle Scholar
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Schweitzer, A., Gizis, J. E., Hauschildt, P. H., Allard, F., Howard, E. M., & Kirkpatrick, J. D. 2002, ApJ, 566, 435 Google Scholar
Schweitzer, A., Gizis, J. E., Hauschildt, P. H., Allard, F., & Reid, N. 2001, ApJ, 555, 368 Google Scholar