The half-mass radius r_h• (blue), core radius r_c• (red), average mass ﹩\overline{{m}_{\bullet }}﹩ of stellar-mass BHs (≤150 M_⊙) within these radii, the stellar-mass density at 0.1 pc ρ_0.1⋆, the half-mass radius velocity σ_h (blue), and the core radius velocity dispersion σ_c (red) are shown as a function of time t for the M50k-IMF-All-r0.01 model. Models that form an IMBH (≥1000 M_⊙) are shown with solid lines; those without an IMBH are shown with dashed lines.