The Substellar Mass Function after 2MASS

Details The Substellar Mass Function after 2MASS The Substellar Mass Function after 2MASS

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...193.8105r&link_type=abstract

American Astronomical Society, 193rd AAS Meeting, #81.05; Bulletin of the American Astronomical Society, Vol. 30, p.1375

Astronomy and Astrophysics

Astronomy

Scientific paper

Follow-up optical and near-infrared observations of extremely red sources from the initial scans of the near-infrared 2MASS survey have produced a bumper crop of isolated low-mass stars and brown dwarfs. As yet, few of these very low-mass (VLM) dwarfs have direct parallax measurements. However, since these sources were identified using well-defined selection criteria, we can compare the observations against predictions based on evolutionary models of VLM dwarfs. This talk describes how the observed surface densities as a function of temperature can be used to constrain the form of the mass function below 0.1 solar masses.

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