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Paper: Large-Scale Wind Variability of WR1 (HD 4004); Towards the Rotation Rate of Wolf-Rayet Stars
Volume: 388, Mass Loss from Stars and the Evolution of Stellar Clusters
Page: 157
Authors: Chené, A.-N.; St-Louis, N.; Moffat, A.F.J.
Abstract: The rotational velocities of two Galactic Wolf-Rayet stars, WR 6 and WR 134, have already been determined in past work from observations of periodic spectral and photometric variabilities. These changes are thought to be due to large-scale spiral structures in the wind formed by the combination of perturbations at the base of the wind and stellar rotation. Here we present the results for a third star, WR 1 (HD 4004), for which we find a rotation period of 16.72 days. Depending on the stellar radius one adopts, this leads to a rotation velocity between 10 and 50 kms−1.
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