Astronomy and Astrophysics – Astronomy
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...198.3308w&link_type=abstract
American Astronomical Society, 198th AAS Meeting, #33.08; Bulletin of the American Astronomical Society, Vol. 33, p.828
Astronomy and Astrophysics
Astronomy
Scientific paper
Peak energy emission shifts into the NIR for late-M, L and T-dwarfs due to their cool effective temperatures. Spectral classification of these objects based upon features in the red-optical require very large telescopes due to their intrinsic faintness at such wavelengths. With a few thousand candidate L and T-dwarfs expected to be identified by 2MASS in the northern hemisphere alone, a more practical method is needed to spectrally confirm candidates and identify interesting objects for follow-up with large telescopes. We present a grid of low resolution (R 300) NIR late-M and L-dwarf spectra observed with the Cornell Massachusetts Slit Spectrograph on the Palomar 60-inch. CorMASS was built specifically for the efficient confirmation and classification of candidate low-mass objects. We discuss spectral type assignments based on this grid and available NIR features, and present some new 2MASS late-M and L-dwarfs confirmed with CorMASS.
Gizis John E.
Houck James R.
Kirkpatrick Joseph D.
Monet David G.
Skrutskie Michael F.
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