The Effect of Porosity on X-ray Emission Line Profiles from Hot-star Winds

@inproceedings{Owocki2006TheEO,
  title={The Effect of Porosity on X-ray Emission Line Profiles from Hot-star Winds},
  author={Stanley P. Owocki and David M. Cohen},
  year={2006}
}
We investigate the degree to which the nearly symmetric form of X-ray emission lines seen in Chandra spectra of early-type supergiant stars could be explained by a possibly porous nature of their spatially structured stellar winds. Such porosity could effectively reduce the bound-free absorption of X-rays emitted by embedded wind shocks, and thus allow a more similar transmission of redvs. blue-shifted emission from the back vs. front hemispheres. To obtain the localized self-shielding that is… CONTINUE READING