RV residuals analysis presenting the posterior samples in the RV semi-amplitude versus orbital period space. The results of the search for a second companion do not show any clear detection. The solid and dashed blue lines correspond to the RV signals of Jupiter-, Saturn-, and Neptune-mass planets. We show that we are sensitive to sub-Saturn-mass planets up to ~100 days and for longer orbital periods (up to 300 days), we can exclude the presence of additional Jupiter-mass planets.