Dark-fluid constraints of shear-free universes
General Relativity and Quantum Cosmology
2022-05-24 v1
Abstract
Integrability conditions arising from general irrotational fluid-flow considerations of a universe dominated by cosmic dark fluids will be investigated under special assumptions on the nature of the spacetime shear. Special emphasis will be placed on linearized perturbations of quasi-Newtonian and anti-Newtonian spacetimes, whereby the conditions for the existence and consistent evolution of such spacetimes in the presence of the Chaplygin gas fluid model will be derived and discussed.
Keywords
Cite
@article{arxiv.2205.11471,
title = {Dark-fluid constraints of shear-free universes},
author = {Amare Abebe},
journal= {arXiv preprint arXiv:2205.11471},
year = {2022}
}
Comments
4+2 pages, no figures. Accepted for publication in Proceedings of the African Conference on Fundamental and Applied Physics (ACP2021)