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

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[33.06] The Properties of the 2MASS Field L Dwarf Population

J.E. Gizis (IPAC/Caltech)

The Two Micron All-Sky Survey (2MASS) has enabled the identification of one hundred nearby cool objects belonging to the new L dwarf spectral class. I argue that the relation between temperature and spectral class is now strongly constrained. Observables such as the fraction of L dwarfs with lithium, the space density, and the kinematics allow the ages and masses of the L dwarf population to be modeled. I discuss the fraction of L dwarfs which are actually brown dwarfs and the best current value of the substellar mass function.

This publication makes use of data products from 2MASS, which is a joint project of the University of Massachusetts and IPAC/Caltech, funded by NASA and NSF.

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

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