The Spectra and Classification of L and T Dwarfs
Adam J. Burgasser

Institute: California Institute of Technology

Contact Email: diver@its.caltech.edu

Abstract: In this contribution, I discuss some of the salient features of L and T dwarf spectra in both the red optical (6300--10000 A) and near-infrared (1--2.5 micron) wavelength regimes. Important absorption bands and lines, including those of H_2O, CH_4, FeH, CrH, CO, and the alkali metal lines, are identified, and the development of recent classification schemes based on these features are discussed. I briefly point out future work required in these wavelength regions and in the mid-infrared that are required to garner a complete picture of these low-luminosity dwarfs.

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Manuscript submitted: 2001-Sep-12
"The Future of Cool-Star Astrophysics", 2003, Eds. A. Brown, G. M. Harper, & T. R. Ayres. Proceedings of 12th Cambridge Workshop on Cool Stars, Stellar Systems, & The Sun,
© 2003 University of Colorado.