Zoomed-in view of the BGLS periodogram of Fig. 9, around the 1.07 days period of the transiting planet, b, where only a minor peak is discernible in the RVs (top panel). The highest RV peaks at P = 1.035 days and P = 0.967 days are aliases of the 29.5 days signal over the sample period of the solar or the sidereal day. Their periods of 1.0 and 0.9973 days show up as the principal double peak in the window function (lowest panel).