Rediscussion of Eclipsing Binaries. IV. RX Herculis and Other a Stars.
Abstract
A new set of spectrograms forms the basis for determination of the masses and radii of the components of RX Her, appreciable corrections being required to the older values. The four A-type eclipsing systems with best-determined properties are RX Her, AR Aur, WW Aur, and Aur. These properties are reexamined and compared with those of nearby single stars. In the relations between color and spectral type, between mass and luminosity, and between color and luminosity the eclipsing binaries show excellent agreement with nearby stars of the main sequence. The greatest uncertainty in the comparisons for stars near type A0 arises from the uncertainty in the temperature scale.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- May 1959
- DOI:
- 10.1086/146664
- Bibcode:
- 1959ApJ...129..659P