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The Classification of L Dwarfs: Is It Based on Clouds or Temperature?

Published online by Cambridge University Press:  26 May 2016

Denise C. Stephens
Denise C. Stephens*
Affiliation:
Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218

Abstract

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A continuous L dwarf classification sequence requires the combined use of far optical (visible) and near infrared spectral indices. However, the visible and near infrared indices currently in use assign subtypes that differ by up to three subclasses due to differences in cloud opacity for objects with the same effective temperature. Therefore, it may be impossible to combine visible and near infrared spectral indices to create one L dwarf classification system, and two classification variables may be necessary.

Type
Part 7. Atmospheres and Internal Structure
Information
Symposium - International Astronomical Union , Volume 211: Brown Dwarfs , 2003 , pp. 355 - 358
Copyright
Copyright © Astronomical Society of the Pacific 2001 

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