Nbody2: A Direct N-Body Integration Code
Astrophysics
2009-11-06 v1
Abstract
We give a full description of the code NBODY2 for direct integration of the gravitational N-body problem. The method of solution is based on the neighbour scheme of Ahmad & Cohen (1973) which speeds up the force calculation already for quite modest particle numbers. Derivations of all the relevant mathematical expressions are given, together with a detailed discussion of the algorithms. The code may be used to study a wide variety of self-consistent problems based on a small softening of the interaction potential.
Cite
@article{arxiv.astro-ph/0105030,
title = {Nbody2: A Direct N-Body Integration Code},
author = {Sverre J. Aarseth},
journal= {arXiv preprint arXiv:astro-ph/0105030},
year = {2009}
}
Comments
Latex (uses macros elsart.cls, harvard.sty. Accepted for publication in New Astronomy)