Fits to the 2006 (high state) and 2007 (low state) XMM‐Newton pn spectra with reflection models. The left panels display the fits using model A (i.e., two power‐law components both with associated reflection), and the right panels for model B (i.e., two power‐law components, of which only one [the flatter] with associated reflection). The top panels display the fits to the high state, the middle panels the low state, and the bottom panels the residuals of the model fits. The line spectra (MEKAL+emission lines) are in black, power laws are shown in red, both reflection components are in blue, and the total model is in green. The spectral parameters of the joint fits in the 0.3–12.0 keV band are given in Table 6.