Fraction of outcomes for each set of simulations. The velocity dispersion decreases from left to right, and goes from σ = 10⁻¹ to σ = 0. The solid lines with circle markers are the simulation in isolation (σn-i). The dashed lines with cross markers indicate the simulations with the SMBH (σn). The horizontal dotted lines indicate the results for σ-ℳℬ. The top panel shows the fraction of mergers (blue lines) and the fraction of mergers with high eccentricity at f_GW = 10 Hz (orange lines). The bottom panel shows the fraction of prompt (green lines) and resonant (red lines) interactions, and the fraction of encounters ending with the original binary (purple lines) or with an exchanged member (brown lines).