Fig. 3.
Observations of the 13 March 2012 eruption. (a) A white-light CME (indicated by the white arrow) seen by LASCO C2. (b) AIA 131 Å image of a sigmoid (highlighted by a dashed red line) brightening above a flaring arcade (indicated by a red arrow). (c) AIA 211 Å base difference image showing twin EUV dimmings (marked by two yellow arrows). (d) AIA 1600 Å image showing hooked flare ribbons (indicated by two black arrows).
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