Proper motion anomaly sensitivity curve for HD 57625. The dark green curve shows the PMa-compatible companion masses as a function of orbital separations, and the shaded region corresponds to the 1σ uncertainty range. The blue and cyan curves represent the SHARK-NIR and LMIRCam mass limits as in Fig. 3. The horizontal lines indicate the brown dwarf (brown) and stellar mass (orange) thresholds. The positions of HD 57625 b as obtained by the RV-only fit and by the joint RV and PMa fit are shown as a red and white circle, respectively, and the distant stellar companion is shown as a yellow star.