Non-linear pulsations in Wolf-Rayet stars
Solar and Stellar Astrophysics
2009-08-10 v1
Abstract
Numerical simulations of the evolution of strange-mode instabilities into the non-linear regime have been performed for a wide range of stellar parameters for Wolf-Rayet stars. It has been shown that the Wolf-Rayet models reach radial velocities which amount to up to 30% of their escape velocity. The acoustic luminosities suggest a connection to the observed mass loss. Most of the models show a jump in the mean effective temperature after reaching the non-linear regime. This jump is related to the run of the opacity.
Cite
@article{arxiv.0908.1029,
title = {Non-linear pulsations in Wolf-Rayet stars},
author = {S. Wende and W. Glatzel and S. Schuh},
journal= {arXiv preprint arXiv:0908.1029},
year = {2009}
}
Comments
2 pages, 2 figures, HYDEF 2007 Proceeding