Hostname: page-component-5c6d5d7d68-txr5j Total loading time: 0 Render date: 2024-08-19T04:28:45.614Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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 

References

Ackerman, A. S., & Marley, M. S. 2001, ApJ, 556, 872 CrossRefGoogle Scholar
Fan, X. et al. 2000, AJ, 119, 928 Google Scholar
Geballe, T. R. et al. 2002, ApJ, 564, 466 Google Scholar
Hawley, S. L. et al. 2002, AJ, 123, 3409 Google Scholar
Kirkpatrick, J. D. et al. 1999, ApJ, 519, 802 Google Scholar
Kirkpatrick, J. D. et al. 2000, AJ, 120, 447 Google Scholar
Kirkpatrick, J. D. 2002, http://spider.ipac.caltech.edu/staff/davy/ARCHIVE/index_l_spec.html Google Scholar
Leggett, S. K. 2002, ApJ, 564, 462 CrossRefGoogle Scholar
Marley, M. S. et al. 2002, ApJ, 568, 335 Google Scholar
Saumon, D. et al. 2000, ApJ, 541, 374 Google Scholar
Schneider, D. P. et al. 2002, AJ, 123, 458 Google Scholar
Tsuji, T. 2002, ApJ, 575, 264 Google Scholar