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Fig. 5.

FX in the 0.5−10 keV band vs. HRX for all BZBs in the selected sample. Background or foreground X-ray sources are marked in gray, and BZB classified as HBL and as LBL are marked in green and orange, respectively. The solid black line separates BZBs with pile-up, which show FX > 2.0 × 10−11 erg cm−2 s−1.
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