Fig. 4.
Post-eruption arcades (PEAs) observed at EUV wavelengths at the solar sources of FRs corresponding to Event 1 (upper panel) and 2 (lower panel). Arcade footpoints are indicated as red dashed lines on the EUV images and the corresponding LOS magnetograms. The PEA shown in the upper panel is associated with a filament and a flare eruption, whereas the PEA in the lower panel is associated with a filament eruption only. No flare event was observed during the eruption of the Event 2 CME.
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