Pulsations in Wolf-Rayet stars: observations with MOST
Abstract
Photometry of Wolf-Rayet (WR) stars obtained with the first Canadian space telescope MOST (Microvariability and Oscillations of STars) has revealed multimode oscillations mainly in continuum light that suggest stellar pulsations could be a significant contributing factor to the mass-loss rates. Since the first clear detection of a pulsation period of P = 9.8h in WR123, two other stars have also shown periods of a few days, which must be related to stellar pulsations.
- Publication:
-
Active OB Stars: Structure, Evolution, Mass Loss, and Critical Limits
- Pub Date:
- July 2011
- DOI:
- Bibcode:
- 2011IAUS..272..445C
- Keywords:
-
- stars: Wolf-Rayet;
- stars: oscillations (including pulsations);
- stars: winds;
- outflows