Phase plots for both binary orbits. Top panel: RVs of component Ba, prewhitened for the variations in the 470 d orbit and plotted vs. phase for the 6 d period and periastron epoch from Table 4. Open circles denote RVs from the literature. Bottom panel: RV curves of components A and B in the wide orbit. Open circles denote component A, filled circles component B (smaller ones for RVs from the literature). We note that in both plots, RVs −γ are plotted.