Outline
1. What you need to know:
a. X-rays from the Sun - magnetic activity, x-ray
spectra
b. Hot
stars
c. Radiation-driven winds and the Doppler
shift
d. The holy grail of science: a
measurement that can discriminate
between two contradictory theories
2. What we have observed/measured with the new generation of high-resolution x-ray telescopes
3. Our empirical model and fits to the data
4. An answer…and more questions