Panel a: maximum power in the 2−10 d range computed on the periodogram of the RV residuals after correction versus σ₀ for S₁, full temporal sampling (with a 4 month gap every year) and different methods (see Fig. 10, lower panels, for the color-coding; the curves for methods 3 and 4 are almost indistinguishable here). The solid black line shows the power before correction and the dotted black line the power after correction in an ideal case (i.e., correction with the reference ). Panel b: same, but for the power in the range 10−50 d. Panel c: same, but for the power in the range 100−500 d. Panel d: same, but for the power in the range 500−800 d. Panel e: same, but for the rms of the residuals after correction. Panel f: same, but for the detection limits at 480 d.