A Newtonian approach to the cosmological dark fluids
General Physics
2015-02-20 v1 Fluid Dynamics
Abstract
We review the hydrodynamics of the dark sector components in Cosmology. For this purpose we use the approach of Newtonian gravitational instability, and thereafter we add corrections to arrive to a full relativistic description. In Cosmology and Astrophysics, it is usual to decompose the dark sector into two species, dark matter and dark energy. We will use instead a unified approach by describing a single unified dark fluid with very simple assumptions, namely the dark fluid is barotropic and its sound speed vanishes.
Keywords
Cite
@article{arxiv.1502.05661,
title = {A Newtonian approach to the cosmological dark fluids},
author = {Alejandro Aviles and Jorge L. Cervantes-Cota and Jaime Klapp and Orlando Luongo and Hernando Quevedo},
journal= {arXiv preprint arXiv:1502.05661},
year = {2015}
}
Comments
13 pages, To be published in 'Selected Topics of Computational and Experimental Fluid Mechanics' Springer Book Series: Environmental Science and Engineering: Environmental Science