Image Details
Caption: Fig. 8.
Recurrence pattern (black pixels) for the F data set. The dimension of each map is ﹩31\farcs 5\times 31\farcs 5﹩. The integration times are (a) 5, (b) 10, (c) 15, and (d) 20 minutes. The circles in (d) highlight regions where recurrent structures are absent; clusters of recurrent structures form a network around such voids.
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