AAS 198th Meeting, June 2001
Session 33. The Big Picture: Latest Science Results from 2MASS
Topical Session Oral, Tuesday, June 5, 2001, 9:00am-12:30pm, 2:00-5:30pm, C101-104

[Previous] | [Session 33] | [Next]

[33.08] Classifying 2MASS Late-M and L-dwarf Candidates in the NIR with CorMASS

J.C. Wilson (Cornell), M.F. Skrutskie (UMASS), J.E. Gizis, J.D. Kirkpatrick (IPAC), D.G. Monet (USNOFS), J.R. Houck (Cornell)

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.

If you would like more information about this abstract, please follow the link to http://www.astro.cornell.edu/research/projects/cormass/cormass.htm. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: jcw14@cornell.edu

[Previous] | [Session 33] | [Next]