Top three panels: modulus of the position and velocity vectors with respect to the center-of-mass for stellar particles (see Eq. (C.7)). Blue dots are stellar particles identified by the Subfind algorithm (left panels), red dots are all selected stellar particles within a sphere with radius 20 times the stellar half-mass radius (highlighted by the dashed solid black line; right panels) and centered around the considered Subfind TDGCs, and green dots are all stellar particles which become accepted by the σ-clipping algorithm with η = 2 and δ = 0.01 (right panels). Bottom: projected stellar particle distribution with positions relative to the center-of-mass for ID 53625. For the σ-clipping, the center-of-mass position and velocity change in each iteration and also for the final accepted stellar particles (see text).