Time evolution of the central stellar density slope α (top) and total mass (bottom) inside the galactic center given in terms of the total binary mass. The slope and mass were determined in a sphere around the central binary. The sphere’s radius r_cent was approximately the binary influence radius and set to 300 pc in A.1–A.3, 20 pc in B, and 100 pc in C. The different simulations are color-coded according to the legend. Sudden jumps in the slope and mass coincide with the beginning of direct chaotic triple SMBH interactions (squares) or the formation of bound binaries (circles).