Fig. 7
BZQJ 1642+6856. Top left panel: TS map for E > 1.0 GeV. The green thin lines show contours corresponding to TS values of 15, 12, 8, and black dashed lines represent 68%, 95%, and 99% containment region. Top right panel: residual TS map for E > 1 GeV considering a source placed at the 2WHSP position, indicated with green cross, as part of the γ-ray background; in this case the black dashed line corresponds to the 68% confinement radius for the γ-ray source, while the white cross indicates the position of BZQJ 1642+6856. Middle and bottom panels: SEDs for 2WHSPJ 1640+6852 for which no optical identification is available yet, and BZQJ 1642+6856 with z = 0.751. The upper limits on the γ-ray spectra have been calculated only for energy bins with low significance.
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