Relation between the mean total kinematic asymmetry K_tot and the nuclear projected separation in (wide and close) interacting and merging systems. The K_tot of a system generally increases with the decreasing of the nuclear separation: it reaches its maximum value in ongoing (pre-coalescence) mergers, then decreases for post-coalescence mergers. The colors and symbols used are the same as in the previous figure (Fig. 6). The pink dashed line helps to highlight the evolutionary trend found when a galaxy goes from the wide-interacting phase to the post-coalescence phase. The horizontal dashed red line is the same as that shown in Fig. 5.