Distribution of semi-major axis a and mass ratios q for companions producing values of RUWE, scatter in RVs, and S NR(PMa) compatible with the observed values for two stars within our sample. The upper panel gives the results for TYC 1986-852-1 (where the indication of the presence of a companion is given by the high value of RUWE); the lower panel for HIP 59833 (where the indication of the presence of a companion is given by the high value of S NR(PMa)). The adopted final values are log a/au = −0.169 ± 0.189 and log q = −0.125 ± 0.103, and log a/au = 1.32 ± 0.34 and log q = −0.66 ± 0.23 for TYC 1986-852-1 and HIP 59833, respectively.