Very high-energy gamma-ray detection and long-term multiwavelength view of the flaring blazar B2 1811+31

Open Access

Fig. 4.

SED in the 100 MeV−1 TeV energy range resulting from Fermi-LAT data from the “Pre-flare” (red), “Flare” (blue) and “Post-flare” (green) periods, as defined in Table 2. The average spectral indices and fluxes in the same energy range for the three periods are reported in Table 2.

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