Observed (data points) and simulated (lines) RVs and activity indicators of the 44 HARPS spectra acquired prior to 2015 plotted against time. The same color-coding as in Fig. 4 was applied. The mean RV was subtracted from both the SERVAL and RACCOON RV time series, as well as the mean of each indicator time series The color-coded solid lines are sinusoidal fits to the simulated spectra computed for the best l = 1, m = 1 mode. The simulation is able to reproduce the amplitudes and phases of all indicators, although some (real) indicators suffer from large scatter. As the simulations focus solely on the stellar photosphere, no meaningful variation of the Hα indicator can be simulated.