Time series of mean-subtracted: (a) LBL RV, in m s⁻¹; (d) CCF FWHM, in m s⁻¹; (g) S-index; (j) Hα; (m) Na I. Measurements are given in hollow blue markers. The temporal coverage of A16 is marked by a dashed black line. The time series appear to have long-term trends, which we remove with a second-order polynomial fit (solid black line) for the purposes of exploration. (b,e,h,k,n) Associated wide-period GLSPs of LBL RV and activity indicators after subtracting the polynomial fit. Three FAP levels: 10%, 1% and 0.1%, split GLSP ordinates in bands of different colour. We highlight periodicities of the two planets discovered by A16: P_b and P_c, as well as the stellar rotational period P_rot (dashed grey lines). (c,f,i,l,o) Zoomed-in GLSPs that focus near 41.7 d. (p) WF of data. (q) Zoomed-in WF that focuses near 41.7 d.