Iterative search of signals with Bayesian periodograms using HARPS and CARMENES data of Gl 480. The three panels display log BF periodograms for (a) the raw data, (b) the Planet b model fit, and (c) the stellar activity correction. The dashed green lines in the bottom panel mark periodicities at the stellar rotation period (P_rot), at the one-half rotation period (P_rot/2), and at the one-third rotation period (P_rot/3). The significance level of log BF = 5 is indicated by the horizontal red dashed line.