X-ray emission from inner-shell ionization of Ne-like ions

We study the X-ray emission from the inner-shell states of S and Fe ions excited by black-body radiation. At a low temperature, the X-ray intensities from inner-shell excited states are smaller than that of Heα. However, at high temperature, both are almost the same. From this trend, we may understand the temperature of the black-body radiation. This may be applied to the analysis of the X-ray emission from X-ray binary stars. Namely, the atomic data along with the inner-shell ionization processes may be useful for astrophysics as well as inner-shell ionization X-ray lasers