RV measurements of the Ba (blue) and Bb (red) components from Mazeh et al. (2009). The dashed line denotes the long-period orbital motion of the close pair and corresponds to a linear drift towards the positive radial velocities, as can be seen in the right panel of Fig. 3. The black line denotes the RV solution of the Ba component, that is, the most massive star of the close pair, while the grey line denotes the RV solution of the Bb component, the faintest companion.