Fig. 2
Left panel: redshift distribution of the 255 type-2 AGN considered in this work. Center panel: intrinsic hard X-ray luminosity distribution of the 255 type-2 AGN considered in this work. Right panel: column density distribution of the 255 type-2 AGN (black histogram), of the 111 type-2 AGN with an NH estimate from spectral analysis (grey filled histogram), and of the 144 type-2 AGN with an NH estimate from hardness ratios (orange hatched histogram).
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