Two-body relaxation (straight red line), SRR (dashed black line), and VRR (dotted blue line) timescales as a function of the cluster mass assuming a half-mass–radius of 3 pc and an SMBH mass of ﹩4.5\times {10}^{6}{M}_{\odot }﹩. Horizontal lines mark the relaxation time for the infalling SC and the whole NC.