Fig. B.1.
Results of the LCCF study of VER J0521+211: (top) between radio (15 GHz) and optical (R-band); (middle) between radio (15 GHz) and X-ray (2–10 keV); and (bottom) between optical and X-ray (2–10 keV). We show 1σ (green solid line), 2σ (blue dashed line), and 3σ (red doted line) significance limits. Positive significant lags show that the flare at lower frequency is preceding the other band.
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