Fig. 5.
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Power spectrum analysis for AIA 211 Å and 171 Å intensity along the current sheet. (a1)–(d1): AIA 211 Å images at t1, t2, t3, and t4. (a2)–(d2): spectrum distributions of AIA 211 Å intensity along the long side of the blue regions in (a1)–(d1) in the spatial frequency domain. (a3)–(d3): spectrum distributions of AIA 171 Å intensity along the long side of the blue regions in (a1)–(d1) in the spatial frequency domain. The red lines represent a fitting power-law behavior in the spatial range of 0.6−5 Mm.
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