659 citations · 2.6k across the 54 of their papers we have counts for
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astro-ph2008★ 13 cited
Chandra LETGS spectroscopy of the Quasar MR2251-178 and its warm absorber
J. M. Ramírez, S. Komossa, V. Burwitz +1
We present an analysis of our Chandra Low Energy Transmission Grating Spectrometer (LETGS) observation of the quasar MR2251-178. The warm absorber of MR2251-178 is well described b…
astro-ph2008★ 7 cited
Variability in the cycle length of the supersoft source RX J0513.9-6951
V. Burwitz, K. Reinsch, J. Greiner +4
The supersoft X-ray binary RX J0513.9-6951 shows cyclic changes between optical-low / X-ray-on states and optical-high / X-ray-off states. It is supposed to be accreting close to t…