Fig. 1

Top: distributions of the EPIC-PN net counts (left) and 2–10 keV power law photon indices (right) of the 248 sources selected for our study (green cross-hatched) compared with the CH10 parent sample (red solid line). Bottom: redshift (left) and rest-frame 2–10 keV luminosity, no absorption correction (right) distributions of these two samples.
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