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Fig. 2

image

V-band (green), 3–13 keV (red), and 20–40 keV (blue) LCs around flares I a) and X b). The inserts show the cross-correlation functions of the 3–13 keV (red) and 20–40 keV (blue) vs. the optical LCs over the same time intervals as the LCs. The dashed vertical lines represent the 0 lag level.

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