Fig. 4.
QPP periods plotted against the separation of the geometric centroids of the two flare ribbons. The differently coloured points correspond to the different instruments used to detect the QPP signals, and the grey line is a linear fit in log space. The Pearson correlation is 0.53 with a p-value of 0.01, and the Spearman correlation is 0.64 with a p-value of 0.001.
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