Minimum mass of the planet versus the orbital distance and mass of the host star (left and right panels, respectively). The blue triangles and red filled circles correspond to subgiant and giant host stars, respectively. The small black dots show the position of known planets around solar-type stars. The dashed lines correspond to a RV amplitude of 30 m s^-1, for a planet orbiting a 1.5 M_⊙ star (left panel) and to an orbital distance of 1 AU (right panel).