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

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dc.creatorFabris, J. C.
dc.creatorGoncalves, S. V. B.
dc.date2006-03-07
dc.date.accessioned2026-07-07T10:27:58Z
dc.date.available2026-07-07T10:27:58Z
dc.descriptionSome 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.
dc.descriptionLatex file, 5 pages
dc.identifierhttps://arxiv.org/abs/astro-ph/0603171
dc.identifierhttp://arxiv.org/abs/astro-ph/0603171
dc.identifierPhys.Rev.D74:027301,2006
dc.identifierdoi:10.1103/PhysRevD.74.027301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177291
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleScalar perturbations and the possible self-destruction of the phantom menace
dc.typetext

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