Fig. 5.
Fermi-LAT adaptively binned light curve of QSO B1420+326 in January 2020. The vertical shaded areas follow the color coding of Fig. 1. Top panel: 0.1−300 GeV photon flux. Middle panel: power-law photon index (the horizontal shaded area represents the average value from the 4FGL with its uncertainty). Bottom panel: E > 10 GeV photons associated with QSO B1420+326 with probability > 80%.
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