Scalar perturbations and the possible self-destruction of the phantom menace

Details Scalar perturbations and the possible self-destruction of the phantom menace Scalar perturbations and the possible self-destruction of the phantom menace

2006-03-07

arxiv.org/abs/astro-ph/0603171v1

Phys.Rev.D74:027301,2006

Astronomy and Astrophysics

Astrophysics

Latex file, 5 pages

Scientific paper

10.1103/PhysRevD.74.027301

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.

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