Linear number density (N/pc) within the cluster tails as calculated by binning distance_along_orbit every 10 pc. (a) Frequency of the number density in all bins coloured according to the cluster age. The frequency of empty bins is shown by crosses at the left end of the plot. (b) The number density for M20000 (solid lines) and M4641 (dotted lines) at various ages. (c) Evolution of the tail density in M20000 as a function of distance_along_orbit (as a multiple of R_tidal). (d) Density variation in M20000 as a function of the distance_along_orbit (in pc). The grey colour denotes the region with <3 particles per bin. The v_relax, R_1/2, R_tidal, N_1/2, and N_tidal are indicated for reference. The 20, 40, and 60R_tidal are marked by grey triangles as visual guides near overdensities. Similar plots for M2154 and M20000_e are given in Figure A.6.