Upper panel: GLS periodogram of the Hα index measurements of HD 59686 A. Bottom panel: GLS periodogram of the Hipparcos V-band photometry of HD 59686 A. The dotted, dashed, and dash-dotted lines in both panels show FAPs of 0.1%, 1%, and 5%, respectively, obtained by bootstraping. No significant periodicities are found in the data.
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