Fig. 8
Fitted continuum slope as a function of the observed 5.0−10.0 keV flux for all XMM-Newton and Chandra data sets, with errors. Black diamonds and red asterisk identify parameters measured with XMM-Newton and Chandra-LETGS, respectively. The black cross represents the higher value of Γ that, for Obs. XM14, would be required by a fit including the cold obscurer (see Sect. 4.3).
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