###
A Deep Multicolor Survey V: The M Dwarf Luminosity Function

**Martini, P. and Osmer, P.S.** 1998, AJ, 116, 2513

We present a study of M dwarfs discovered in a large area, multicolor
survey. We employ a combination of morphological and color criteria to
select M dwarfs to a limiting magnitude in V of 22, the deepest such
ground-based survey for M dwarfs to date. We solve for the vertical disk
stellar density law and use the resulting parameters to derive the M
dwarf luminosity and mass functions from this sample. We find the stellar
luminosity function peaks at M_V \sim 12 and declines thereafter. Our derived
mass function for stars with M < 0.6 M_sun is inconsistent with a
Salpeter function at the 3 sigma level; instead, we find the mass function
is relatively flat for 0.6 M_sun > M > 0.1 M_sun.

[
Publication List |
Home Page
]