Overview of distributions of Collided systems (see the detailed definition and caveats of this category in Sect. 4.2). The solid histograms represent the Collided parameters at one Hubble time, while the dashed lines show their initial distributions. The ‘out’ subscript denotes the planetary parameters (blue distributions). The dotted grey lines show the initial distributions for the whole population, not restricted to the Collided. Top half: Pop. A, bottom half: Pop. B.