Line-blanketed model atmospheres for WR stars

G. Gräfener^1,2,3, L. Koesterke¹, W.-R. Hamann¹

¹Institut für Physik, Universität Potsdam, Am Neuen Palais 10, D-14469 Potsdam, Germany ²Institute of Astronomy, ETH Zentrum SEC , Scheuchzer Str. 7, CH-8092 Zürich, Switzerland ³PMOD/WRC, CH-7260 Davos Dorf, Switzerland

We describe the treatment of iron group line-blanketing in non-LTE model atmospheres for WR stars. As an example, a blanketed model for the early-type WC star WR 111 is compared to its un-blanketed counterpart. Blanketing affects the ionization structure and the emergent flux distribution of our models. The radiation pressure, as computed within our models, falls short by only a factor of two to provide the mechanical power of the WR wind.

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