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Simulations, Data Analysis and Algorithms

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Figure 4 | Computational Astrophysics and Cosmology

Figure 4

From: GPU-enabled particle-particle particle-tree scheme for simulating dense stellar cluster system

Figure 4

Maximum relative energy error as a function of \(\pmb{\Delta r_{\mathrm{buff}}}\) in unit of \(\pmb{\Delta t_{\mathrm{soft}} \sigma}\) . Here σ is the global three dimensional velocity dispersion of the system (\(=1/{\sqrt{2}}\)). For all runs, we use \(\eta=0.1\), \(\Delta t_{\mathrm{soft}}=1/512\), \(t_{\max}=\Delta t_{\mathrm{soft}}/4\), \(\theta=0.1\) and \(\Delta r_{\mathrm{buff}}=3\sigma\Delta t_{\mathrm{soft}}\).

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