Fig. 3.
Left: morlet wavelet plot of the time series data corresponding to slit 26. Middle: global wavelet spectrum, normalised to its maximum value. The period of maximal global wavelet power for this slit’s time series is found to be 7.28 min. Right top: SDO/AIA image, rotated for reader’s convenience, on which the loop midplane (dashed line) and slit position (solid line) is overlaid. Right bottom: time-distance map for this slit (zoomed), from which the time series is extracted.
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