The Phase-Space Structure of Cold Dark Matter in the Universe
Abstract
A novel method allowing to compute density, velocity and other fields in cosmological N--body simulations with unprecedentedly high spatial resolution is described. It is based on the tessellation of the three-dimensional manifold representing cold dark matter in six-dimensional phase space. The density, velocity and other fields are computed by projecting the tessellation on configuration space. The application of this technique to cosmological N--body simulations in LambdaCDM cosmology reveals a far more elaborate cosmic web then dot plots or self--adaptive SPH. In addition, this method allows to uniquely define physical voids and identify and study the caustic surfaces directly.
Keywords
Cite
@article{arxiv.1302.0236,
title = {The Phase-Space Structure of Cold Dark Matter in the Universe},
author = {Sergei Shandarin},
journal= {arXiv preprint arXiv:1302.0236},
year = {2013}
}
Comments
3 pages, 1 figure. Proceedings of the Thirteenth Marcel Grossman Meeting on General Relativity (Stockholm, Sweden, July 1-7, 2012), invited talk at the Parallel Session OC4 "New developments in the study of the large scale structure of the Universe"