Scalar perturbations and the possible self-destruction of the phantom menace
Astrophysics
2008-11-26 v1 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
Some analysis of the supernovae type Ia observational data seems to indicate that the Universe today is dominated by a phantom field, for which all energy conditions are violated. Such phantom field may imply a singularity in a future finite time, called big rip. Studying the evolution of scalar perturbations for such a field, we show that if the pressure is negative enough, the Universe can become highly inhomogeneous and this phantom menace may be avoided.
Cite
@article{arxiv.astro-ph/0603171,
title = {Scalar perturbations and the possible self-destruction of the phantom menace},
author = {J. C. Fabris and S. V. B. Goncalves},
journal= {arXiv preprint arXiv:astro-ph/0603171},
year = {2008}
}
Comments
Latex file, 5 pages