Properties of the groups found in the simulated samples using ϵ = 0.046. a) Distribution of the number of stars in the groups. Lines in panels b)–f) indicate the percentiles 5, 10, 25, 75, 90 and 95 of the distribution of radial velocity b), velocity dispersion c), distance d), distance dispersion e) and 3D separation f), for groups having N_stars members. For the velocity distribution b) the x axis shows the absolute value of the velocity and hence, only the percentiles 75, 90 and 95 are indicated. Panels b) to f) show the location of groups A to H (Table 8) as solid circles.