Journal article
Dependence of Wolf-Rayet wind clumping on the surface temperature
Proceedings of the International Astronomical Union, Vol.18(S361), pp.493-495
05/2022
DOI: 10.1017/S1743921322003118
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.
Details
- Title: Subtitle
- Dependence of Wolf-Rayet wind clumping on the surface temperature
- Creators
- André-Nicolas Chené - NSF’s NOIRLabNicole St-Louis - Centre for Research in Astrophysics of QuébecGuillaume Lenoir-Craig - Centre for Research in Astrophysics of QuébecAnthony F. J. Moffat - Centre for Research in Astrophysics of QuébecKenneth Gayley - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Proceedings of the International Astronomical Union, Vol.18(S361), pp.493-495
- Publisher
- Cambridge University Press
- DOI
- 10.1017/S1743921322003118
- ISSN
- 1743-9213
- eISSN
- 1743-9221
- Number of pages
- 3
- Language
- English
- Date published
- 05/2022
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984701659102771
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