Fig. 4.
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Distribution of stacked net-counts in the UHB for 1000 realizations of random positions (cyan histogram). The number of stacked net counts obtained for the type 2 AGN sample is marked with the dashed red line. All of the random realizations return a lower number of net counts, implying a significance of > 0.999 of the stacked emission from the type 2 AGN sample.
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