Spatial distribution at the end of the parent body dynamics-only runs, i.e., once a steady state has been reached (except for the μ = 10^-5, e_b = 0.1 run), for different planet orbits and masses. Distances are given in AU. The planet’s semi-major axis is 75 AU for all cases, and is aligned with the X-axis, with its perihelion on the right hand side. All snapshots are shown when the planet passes at aphelion (the planet’s location is marked by a cross). For all runs except the μ = 10^-5, e_b = 0.1 one, the time given is the time at which steady-state has been reached. For the μ = 10^-5, e_b = 0.1 run, the time is the one at which simulation has been stopped, i.e., before steady state has been reached (see text for details).