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Fig. 2.
Event 1: AR 11520 on 12 July 2012. Panel a: AIA 94 Å image of the pre-eruptive sigmoid. Panel b: HMI magnetogram with PEA area overlaid (saturated at −100 gauss and +100 gauss). Panel c: PEA from AIA 193 Å with the area outlined by a polygon. The dates and times are shown as YYYY-MM-DD hh:mm in all panels.
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