Physical Sciences and Mathematics Commons^™

The Effects Of Clumps In Explaining X-Ray Emission Lines From Hot Stars., J. Cassinelli, Richard Ignace, W. Waldron, J. Cho, N. Murphy, A. Lazarian

ETSU Faculty Works

It is now well established that stellar winds of hot stars are fragmentary and that the X-ray emission from stellar winds has a strong contribution from shocks in winds. Chandra high spectral resolution observations of line profiles of O and B stars have shown numerous properties that had not been expected. Here we suggest explanations by considering the X-rays as arising from bow shocks that occur where the stellar wind impacts on spherical clumps in the winds. We use an accurate and stable numerical hydrodynamic code to obtain steady state physical conditions for the temperature and density structure in a …