Fig. 3

GLS periodograms of the RV time series and residuals after consecutive signal fits. The red vertical lines indicate the potential rotation period (dashed) and its first harmonic (dot-dashed), while the dashed blue vertical lines marks the orbital period of the planetary candidate. The dotted, dash-dotted, and dashed horizontal lines indicate the 0.1, 1, and 10% FAP levels, respectively.
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