Fig. B.2
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Periodograms of the SOPHIE activity indicators: FWHM, CCF contrast, Hα, S index, and BIS for the 2021–2023 period. The vertical dashed lines depict: in red, 6.02 days; in blue, the rotation period with its harmonic in green; in orange, 18.7 days, and, in purple dots, 2.99 days. The horizontal dashed lines indicate the 1% and 0.1% FAP levels.
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