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| Paper: |
Are Wolf-Rayet Winds Driven by Radiation? |
| Volume: |
388, Mass Loss from Stars and the Evolution of Stellar Clusters |
| Page: |
21 |
| Authors: |
Gräfener, G.; Hamann, W-R. |
| Abstract: |
Recent results with the Potsdam Wolf-Rayet (PoWR) models have shown that Wolf-Rayet mass loss can be explained by radiative wind driving. An inspection of the galactic WR sample, however, reveals that a significant part of the observed WR stars are in conflict with our models. This group is chiefly formed by intermediate spectral subtypes. Among the population of late-type WN stars we find that the enigmatic WN8 subtypes, which are well-known for their photometric variations, are in disagreement with our models. So are there other driving mechanisms working in these objects? |
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