Core radius (heavy black line) and Lagrangian radii containing 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, 10%, 5%, 3%, 2%, 1%, and 0.1% (blue dashed lines from top to bottom) of the total mass. The half-mass radius is indicated by a heavier blue dashed line. The initial condition was a Plummer model of 16 384 stars. A Salpeter mass function with mass limits m_lower = 0.5   M_⊙ and m_upper = 5   M_⊙ was chosen as the initial mass function. Core collapse is reached at t_cc ≃ 634 N-body time units or t_cc ≃ 2.2t_rlx. The simulation ended at t ≃ 660 N-body time units and took  ~5 days.