Fig. 8
Long-term light curves from VHE γ-ray measurements (upper panel: H.E.S.S.), optical data (middle panel: ROTSE) and radio data (lower panel: NRT and HartRAO). Please note that the y-axis is truncated for the long-term H.E.S.S. light curve due to the large dynamic range caused by the flares. A zoom on the period covering the two VHE flares is shown in an inset in the upper panel.
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