The K-Band Surface Brightness of Late-Type Stars and the Distance to Cataclysmic Variables
Abstract
The method for determining the distance to cataclysmic variables using the K-band surface brightness is reexamined with a new, larger dataset. The K-band surface brightness of dwarf stars is constant over the range 3.0 less than or equal to V-K less than or equal to 5.0, and declines at larger values of V-K. The behavior of the K-band surface brightness depends on luminosity class. Theoretical models of M dwarf stars are roughly consistent with the observations. This new surface brightness relationship reconciles the different distance determinations for HT Cas.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- April 1994
- DOI:
- 10.1086/173980
- Bibcode:
- 1994ApJ...425..243R
- Keywords:
-
- Cataclysmic Variables;
- Computational Astrophysics;
- Dwarf Stars;
- Extremely High Frequencies;
- Infrared Astronomy;
- Infrared Stars;
- Late Stars;
- Brightness;
- Radii;
- Stellar Luminosity;
- Stellar Models;
- Astrophysics;
- INFRARED: STARS;
- STARS: NOVAE;
- CATACLYSMIC VARIABLES;
- STARS: INDIVIDUAL CONSTELLATION NAME: HT CASSIOPEIAE;
- STARS: LATE-TYPE