Assessing the impact of bulk and shear viscosities on large scale structure formation
Cosmology and Nongalactic Astrophysics
2017-08-10 v3 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
It is analyzed the effects of both bulk and shear viscosities on the perturbations, relevant for structure formation in late time cosmology. It is shown that shear viscosity can be as effective as the bulk viscosity on suppressing the growth of perturbations and delaying the nonlinear regime. A statistical analysis of the shear and bulk viscous effects is performed and some constraints on these viscous effects are given.
Keywords
Cite
@article{arxiv.1702.07040,
title = {Assessing the impact of bulk and shear viscosities on large scale structure formation},
author = {C. M. S. Barbosa and H. Velten and J. C. Fabris and Rudnei O. Ramos},
journal= {arXiv preprint arXiv:1702.07040},
year = {2017}
}
Comments
V2. Final version