Bolometric luminosities and colors for K and M dwarfs and the subluminous stars of the halo

Details Bolometric luminosities and colors for K and M dwarfs and the subluminous stars of the halo Bolometric luminosities and colors for K and M dwarfs and the subluminous stars of the halo

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989pasp..101..787g&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 101, Sept. 1989, p. 787-810.

Astronomy and Astrophysics

Astronomy

26

Escape Velocity, Halos, Main Sequence Stars, Stellar Color, Stellar Luminosity, Subdwarf Stars, Bolometers, Color-Color Diagram, Energy Distribution, Hertzsprung-Russell Diagram, Infrared Photometry, Tables (Data), Weighting Functions

Scientific paper

The H-R diagrams of dM, sdK, and sdM proper-motion stars are examined. A method for integrating energy distributions using discrete weights is proposed. The bolometric corrections are assessed at various wavelengths and a method for obtaining luminosities even if a star lacks IR data is presented. The color-luminosity diagrams suggest that high-velocity, low-metallicity stars of the halo are subluminous. It is found that the apparent cutoff in the halo is a bolometric magnitude of about 12 m.

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