Top left panel: flux measured on the SDI residual maximum as a function of the mass and separation, assuming an age of 500 Myr, a distance of 15 pc, and H = 4.84 mag. Contours indicate F_SDI in (ADU/s). White areas correspond to negative flux. Top right panel: mass map as a function of the separation and predicted F_SDI. Regions where a degeneracy appears are specified with black contours, indicating the number of solutions. The first (and less massive) solution is plotted here. Cases without solution are plotted in white. Bottom left panel: the same, but considering the second solution in mass. Bottom right panel: the same, but considering the third solution in mass (see text).