Optimal smoothing for n-body codes
Nov, 1995Published in:
- Astron.J. 111 (1996) 2462
e-Print:
- astro-ph/9511146 [astro-ph]
DOI:
Report number:
- RUTGERS-ASTROPHYSICS-PREPRINT-SERIES-NO-181
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Abstract: (arXiv)
In any collisionless N-body code, there is an optimal choice for the smoothing parameter that minimizes the average error in the force evaluations. We show how to compute the optimal softening length in a direct-summation code and demonstrate that it varies roughly as 1/N^(1/3).References(4)
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