NOAO > Observing Info > Approved Programs > 2002A-0197
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NOAO > Observing Info > Approved Programs > 2002A-0197 |
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PI: Joan Najita, NOAO, najita@noao.edu
Address: 950 N. Cherry Ave., Tucson, AZ 85719, USA
CoI: Arjun Dey, NOAO
CoI: Buell Jannuzi, NOAO
CoI: Jim Liebert, Steward Observatory
CoI: Dan Wik, Ohio University
CoI: John Gizis, University of Delaware
CoI: Glenn Tiede, University of Florida
Title: Brown Dwarfs in the NOAO Deep Wide-Field Survey and the Substellar Mass Function
Abstract:
The NOAO Deep Wide-Field Survey will enable a detailed look at the
substellar IMF in the field. The unique combination of red and infrared
survey bands are ideal for selecting brown dwarfs and obtaining a rough
measure of their effective temperatures. In addition, the faint flux
limits of the survey will probe 10 times the depth probed by 2MASS.
Here we propose to obtain far-red spectroscopy of a subsample of
substellar candidates from the survey in order to quantify the rate of
contamination from galaxies and other non-substellar interlopers in the
substellar candidate sample. When corrected for the interloper
contamination, the resulting IMF will sample older ages and lower masses
than the 2MASS substellar IMF. We will also be able to address whether
the 2MASS substellar IMF is a local phenomenon or representative of a
larger region of the Galaxy.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
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NOAO > Observing Info > Approved Programs > 2002A-0197 |
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