A Search for Beta-Cephei Type Variability in a Sample of Intermediate Galactic Latitude to High Galactic Latitude B-Type Stars
Abstract
We have photometrically monitored nine intermediate- to high-Galactic-latitude B-type stars for β Cephei-type variability. One star, HD 204076, shows a clearly sinusoidal variation with an amplitude of 0.015 mag and a period of a few hours, typical of β Cephei stars. One other (HD 206144) is possibly a longer term variable at the 2 per cent level, while two objects, HD 219188 and HD 118246, may be variable at a smaller amplitude of < 0.0t mag. The remaining five stars show no signs of any periodic changes above 0.0t mag and are therefore unlikely to belong to the β Cephei class of variable.
- Publication:
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Monthly Notices of the Royal Astronomical Society
- Pub Date:
- April 1994
- DOI:
- 10.1093/mnras/267.4.1103
- Bibcode:
- 1994MNRAS.267.1103H
- Keywords:
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- stars: early-type stars: oscillations - Cepheids