Fig. 8

Measurements of the Fe K line parameters of PID 203: the rest-frame Gaussian centroid energy, Gaussian dispersion (σ) and flux, obtained from the six XMM (filled circles, see also Fig. 6) and four Chandra (open squares) intervals in time order. The dashed line indicates the 6 yr gap between the X2 and C3 observations. Notable changes both in line shape and flux observed in the Chandra data are demonstrated in Fig. 9. The X-ray source flux dependence of these line parameters are shown in Fig. 10.
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