Semi-major axes and masses of planets whose host stars have masses between 0.7 and 2.0 M_⊙ and ages between 1.0 and 4.5 Gyr. Top panels: they are separated by the host stars’ phase space density; in the bottom panel, they are separated by the host stars’ peculiar velocity. Typically, a low velocity corresponds to a high phase space density and vice versa. We see an abundance of hot Jupiters in the high-density and the low-velocity populations. We note that stars that cannot be unambiguously assigned to one of the populations are not included, and that some stars have multiple planets.