Generalized Lomb-Scargle Periodograms of the SOPHIE RV time series for the full 2010–2023 data set (top), the 2010–2012 period (middle), and the 2021–2023 period (bottom). The location of the rotational period of P_rot = 13.9 days and its P_rot/2 harmonic are indicated with blue vertical lines. The position of P = 6.02 days is displayed with a red vertical line. The horizontal lines indicate the bootstrap calculated at 0.1%, 1%, and 10% FAP levels. The window function is shown with a light orange color.