Generalized Lomb–Scargle periodograms. In order from the top to the bottom panel: HARPS-N spectrograph RVs, BIS, and S_HK series; TESS photometric time series (Sectors 22 and 49); and ASAS-SN. The vertical orange lines represent the main peak of the periodogram, at ~I3.4 days, corresponding to the stellar rotation period P_rot. The green and the red lines represent the orbital period of, respectively, planets b and -c.