Lomb-Scargle periodograms of the combined data residuals after removing MA components from the noise (top left panel) and removing the 35 (middle left panel), 14 (bottom left panel), 95 (top right panel), 168 (middle right panel), and 640 day signals (right bottom panel). The dotted, dashed, and dot-dashed lines indicate the analytical 10%, 1%, and 0.1% FAPs, respectively.
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