The distribution of low-mass stars in the Galactic disc

Details The distribution of low-mass stars in the Galactic disc The distribution of low-mass stars in the Galactic disc

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.262..545k&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 262, no. 3, p. 545-587.

Astronomy and Astrophysics

Astrophysics

947

Binary Stars, Galactic Nuclei, Milky Way Galaxy, Star Distribution, Stellar Mass, Color-Magnitude Diagram, Main Sequence Stars, Mass To Light Ratios, Metallicity, Solar Neighborhood, Stellar Evolution, Stellar Luminosity

Scientific paper

The complex interdependence of stellar binarity, the stellar mass-luminosity relation, the mass function, the color-magnitude relation, and Galactic disk structure is quantified. A mass-M(V) relation and a model for the change of stellar luminosity with changes in chemical abundance and age are derived. A combination of this with detailed modeling of all astrophysical and observational contributions to the Malmquist scatter makes it possible to model star-count data without approximating Malmquist corrections. It is shown that a single mass function and normalization explain the stellar distribution towards both Galactic poles, as well as the distribution of stars within a distance of 5.2 pc of the sun.

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