The metallicity dependence of WR wind models
Astrophysics
2007-05-23 v1
Abstract
With the advance of stellar atmosphere modelling during the last few years, large progress in the understanding of Wolf-Rayet (WR) mass loss has been achieved. In the present paper we review the most recent developments, including our own results from hydrodynamic non-LTE model atmospheres. In particular, we address the important question of the Z-dependence of WR mass loss. We demonstrate that models for radiatively driven winds imply a rather strong dependence on Z. Moreover, we point out the key role of the L/M-ratio for WR-type mass loss.
Keywords
Cite
@article{arxiv.astro-ph/0511174,
title = {The metallicity dependence of WR wind models},
author = {G. Gräfener and W. -R. Hamann},
journal= {arXiv preprint arXiv:astro-ph/0511174},
year = {2007}
}
Comments
12 pages, 6 figures. Invited Review in Tartu workshop (Aug 2005). Proc "Stellar Evolution at Low Metallicity: Mass-Loss, Explosions, Cosmology" (eds: H. Lamers, N. Langer, T. Nugis), ASP Conf Series