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- Title
Dependence of Wolf-Rayet wind clumping on the surface temperature.
- Authors
Chené, André-Nicolas; St-Louis, Nicole; Lenoir-Craig, Guillaume; Moffat, Anthony F. J.; Gayley, Kenneth
- Abstract
We present our measurements of the amplitude of photometric and spectroscopic variability due to clumping in the wind of Wolf-Rayet (WR) stars. Photometric variability was assessed using TESS light-curves, while spectroscopic variations were obtained from almost 20 years of monitoring of nearly 100 classical (presumably single) stars. Our results show an apparent dependence of the variability amplitude with the stars' surface temperature and/or terminal velocity. Our interpretation is that it supports the idea that the dominating driver of the clumps in WR winds is a sub-surface convection region.
- Subjects
WOLF-Rayet stars; TERMINAL velocity; STELLAR mass; SURFACE temperature
- Publication
Proceedings of the International Astronomical Union, 2024, Vol 18, Issue S361, p493
- ISSN
1743-9213
- Publication type
Article
- DOI
10.1017/S1743921322003118