Fig. 3.
Light curves in 94, 131, 171, 193, 211, 304, and 335 Å AIA passbands from the region marked with the box shown in Fig. 2j as well as in the GOES 1–8 Å channel. All curves are normalized to their maximum values. The vertical dashed line marks the first appearance of the HFR. The arrows just above the horizontal axis mark the times of the images displayed in Fig. 2.
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