X-ray line emission in Hercules X-1

M. A. Jimenez-Garate, C. J. Hailey, J. W. den Herder +2

We find line emission from the hydrogen- and/or helium-like ions of Ne, O, N and C in the low and short-on states of Her X-1, using the XMM-Newton Reflection Grating Spectrometer.…