2001/09/24 by Adam J. Burgasser, Burgasser, Adam J.
Chemistry · Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Spectroscopy and Laser Applications #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0109422
10 pages, 6 figures, To be published in Proceedings of the 12th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun
arxiv created 2001/09/24 · openalex publication_date 2001/09/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this contribution, I discuss some of the salient features of L and T dwarf spectra in both the red optical (6300--10000 Å) and near-infrared (1--2.5 \micron) wavelength regimes. Important absorption bands and lines, including those of H2O, CH4, 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.