Evolution of the BMBH separation from ﹩a_{s}﹩ to ﹩a_{\mathrm{GW}\,}﹩ in a major merger due to three‐body scatterings of stars. The evolution in the major merger scenario with MP‐induced relaxation (solid lines) is compared to that with stellar relaxation (dashed lines) for BMBH masses of 10⁶, 10⁷, 10⁸, and 10⁹ ﹩M_{\odot }﹩ (from bottom up).