Total mass of galactic components (dark matter, stars, gas) shown from top to bottom, with their half-mass radii, R_0.5 (different colors represent different components, as per the legend); star formation rate (SFR); relative distance from the center of the group or cluster (blue, left y-axis), and the galaxy’s relative velocity (orange, right y-axis). The dashed vertical line represents the moment when the group merges with a nearby cluster.