Left: Radial velocity of all 5036 subhalos onto their parent halo versus the mass of their parent halo, highlighted in blue are those subhalos whose radial velocity lies between the minor and major infall velocity (dark colours mark bound halos, light colours mark subhalos in the Hubble flow). Centre: Same as the previous plot, but depending on the distance of the parent halo to the observer instead of the parent-halo mass. Right: Hubble-flow diagram for the most massive halo in our halo set to be compared with Fig. 7 of Kim et al. (2020). The major and minor infall velocities can be compared to the true radial infall velocity (dark colours mark bound halos, light colours mark subhalos in the Hubble flow), squared markers indicate which radial velocities lie between the minor and major infall velocities.