Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010mnras.401.1898f&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 401, Issue 3, pp. 1898-1903.
Astronomy and Astrophysics
Astronomy
1
Methods: N-Body Simulations, Methods: Numerical, Stars: Kinematics
Scientific paper
This paper introduces a novel approach for sampling the orbits of an N-body simulation. The gist of the method is to exploit individual phase-space coordinates acquired during integration of the equations of motion. This technique, which we dub `particle-based sampling scheme', is tailor-made for resolving rapid time-variation of coordinates when needed. The PBaSS requires less disk space (by factors of 10 or more) to retrieve orbits at a chosen accuracy than those reconstructed using the classic snapshot approach. Furthermore, the PBaSS also allows a reconstruction of the system at any time-resolution not smaller than the smallest integration time-step in a post-simulation treatment, thus avoiding costly simulation reruns.
Boily Christian M.
Faber N. T.
McMillan Stephen L. W.
Portegies Zwart Simon
Stibbe D.
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