3 papers
astro-ph.SR2016
Two bi-stability jumps in theoretical wind models for massive stars and the implications for Luminous Blue Variable supernovae
Blagovest Petrov, Jorick S. Vink, Götz Gräfener
Luminous Blue Variables have been suggested to be the direct progenitors of supernova types IIb and IIn, with enhanced mass loss prior to explosion. However, the mechanism of this…
astro-ph2005
The metallicity dependence of WR wind models
G. Gräfener, W. -R. Hamann
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…
astro-ph2004
Hydrodynamic model atmospheres for WR stars: Self-consistent modeling of a WC star wind
G. Gräfener, W. -R. Hamann
We present the first non-LTE atmosphere models for WR stars that incorporate a self-consistent solution of the hydrodynamic equations. The models account for iron-group line-blanke…