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Fig. 6.

image

Evolution of photospheric magnetic field in the PROI in relation to the flare: (a) average brightness of the PROI in AIA 1600 Å; (b) average |Br| (scaled by the left y-axis) and Bh (scaled by the right y-axis) in the PROI; (c) direct (|IDC|) and return (|IRC|) current flowing through the PROI.

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