  Using an ionization gasdynamics code, we simulate a model of the wind-blown
bubble around a 40 solar mass star. We use this to compute the X-ray spectra
from the bubble, which can be directly compared to observations. We outline our
methods and techniques for these computations, and contrast them with previous
calculations. Our simulated X-ray spectra compare reasonably well with observed
spectra of Wolf-Rayet bubbles. They suggest that X-ray nebulae around massive
stars may not be easily detectable, consistent with observations.

High Energy Astrophysical Phenomena