A Test of the Particle Paradigm in N-Body Simulations
Astrophysics
2009-10-28 v1
Abstract
We present results of tests of the evolution of small ``fluid elements'' in cosmological N--body simulations, to examine the validity of their treatment as particles. We find that even very small elements typically collapse along one axis while expanding along another, often to twice or more their initial comoving diameter. This represents a possible problem for high--resolution uses of such simulations.
Cite
@article{arxiv.astro-ph/9607152,
title = {A Test of the Particle Paradigm in N-Body Simulations},
author = {B. Kuhlman and A. L. Melott and S. F. Shandarin},
journal= {arXiv preprint arXiv:astro-ph/9607152},
year = {2009}
}
Comments
Uses aasms4.sty; accepted for publication in ApJ Letters. Files available also at ftp://kusmos.phsx.ukans.edu/preprints/atest