From left to right and top to bottom: time series and associated Lomb-Scargle periodogram of (a and b) radial velocity (RV); (c and d) bisector span (BIS); (e and f) full width half maximum (FWHM); (g and h) H_α index; (i and j) S index (S_MW). The peak position marked by the purple line corresponds to a period of 25 d (stellar rotation). The orbital periods of the six planets are marked in the RV periodogram. For the FWHM, we fitted a linear drift of −32.39 m s⁻¹ yr⁻¹. For the H_α index, the drift is − 7.28 ± 1.34. For the S_MW index, the drift is − 57.83 ± 4.85 (reference epoch is RJD_TDB 55 500 for all of them).