X-ray emission is ubiquitous among massive stars. It provides the
high-energy window in the stellar winds and allows deep insight in the wind
structure. The high-resolution X-ray spectroscopy is a powerful tool to
study the inhomogeneous stellar winds. The mechanisms responsible for the
generation of X-rays are not yet fully understood. We have fairly good ideas
of how X-rays are produced in O stars, we can guess what may be the
mechanism in B stars, but we have little understanding yet about X-rays from
WR stars. I will briefly review the new observations of massive stars with
X-ray telescopes, which continue to widen our knowledge about massive stars
and their winds. I will also briefly review the theories and models of X-ray
emission in massive stars.
Back to the seminar webpage.
