On the period history of the Beta Cephei star BW Vulpeculae.
Abstract
We present an extensive compilation of times of light minimum of the large-amplitude Beta Cephei star BW Vul and discuss the resulting O - C diagram. We conclude that a linear secular change of period, combined with the light-time effect in a binary system, does not fully account for all observed changes, and that unexplained irregular fluctuations of small amplitude do remain.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 1993
- Bibcode:
- 1993A&A...270..259S
- Keywords:
-
- Binary Stars;
- Cepheid Variables;
- Periodic Variations;
- Stellar Magnitude;
- Stellar Oscillations;
- Stellar Luminosity;
- Stellar Systems;
- Astrophysics