Fig. 19
Error in the energy per quarter of the time unit (δE = E(t) − E(t − 0.25)) as it evolves in time for the simulation of an equal-mass Plummer model of 1024 stars. The simulation ended at t ≃ 402 N-body time units. The dashed line is the energy error of Starlab when it was used for evolving the same system. Before core collapse, the energy errors are identical.
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