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Fig. 6.


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HID for HERG (red squares) and LERG (blue circles) sources. The histograms show the distribution of the normalized number of counts for the HERGs and LERGs in hardness and Ltot. The mean error is shown in the lower-left-hand corner. All contours show a smoothed Gaussian KDE enclosing 68% of the data points. Panel a: emphasis placed on the two comparison samples (described in Sect. 3.4), with the XMM AGN sample depicted by the solid outlined contour with blue filling and the BASS sample depicted by the dashed-dotted outlined contour with gray filling. Panel b: plot (a) but with emphasis placed on the difference between the HERG and LERG populations and their placement with respect to the comparison samples, showcased with corresponding contours and shading. We see that HERGs and LERGs occupy different areas of the HID.

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