Disk M Dwarf Luminosity Function From HST Star Counts

Details Disk M Dwarf Luminosity Function From HST Star Counts Disk M Dwarf Luminosity Function From HST Star Counts

1995-05-19

arxiv.org/abs/astro-ph/9505087v1

Astrophys.J. 465 (1996) 759

Astronomy and Astrophysics

Astrophysics

30 pages, uuencoded postscript, includes 3 figures, 2 tables

Scientific paper

10.1086/177460

We study a sample of 257 Galactic disk M dwarfs (812 (M<0.25 \ms), decreasing by a factor \gsim 3 by M_V~14 (M~0.14\ms). This decrease in the LF is in good agreement with the ground-based photometric study of nearby stars by Stobie et al. (1989), and in mild conflict with the most recent LF measurements based on local parallax stars by Reid et al. (1995). The local LF of the faint Galactic disk stars can be transformed into a local mass function using an empirical mass-M_V relation. The mass function can be represented analytically over the mass range 0.1\ms

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