Non-linear dark matter collapse under diffusion
Cosmology and Nongalactic Astrophysics
2014-09-30 v1 High Energy Physics - Theory
Abstract
Diffusion is one of the physical processes allowed for describing the large scale dark matter dynamics. At the same time, it can be seen as a possible mechanism behind the interacting cosmologies. We study the non-linear spherical "top-hat" collapse of dark matter which undergoes velocity diffusion into a solvent dark energy field. We show constraints on the maximum magnitude allowed for the dark matter diffusion. Our results reinforce previous analysis concerning the linear perturbation theory.
Cite
@article{arxiv.1408.4328,
title = {Non-linear dark matter collapse under diffusion},
author = {Hermano E. S. Velten and Thiago R. P. Caramês},
journal= {arXiv preprint arXiv:1408.4328},
year = {2014}
}
Comments
6 pages, 9 figures