Surface-density profile of UGC 7346 + NSC1, NSC2, and NSC3 (from top to bottom, respectively). Dashed–dotted line shows the surface brightness profile of UGC 7346 at t = 0. Middle panel: surface density of NSC1 is shown as a solid gray line for comparison. Bottom panel: solid gray line represents the surface density of NSC3 at 1.6 Gyr. Thin dashed lines show the surface density of the clusters C1 and C2 observed in IC 3.