Gravitational instability in oscillating background
General Relativity and Quantum Cosmology
2015-09-30 v1 Cosmology and Nongalactic Astrophysics
Abstract
Evolution of density and metric perturbations in the background of high frequency oscillations of curvature in F(R) gravity is considered. In addition to the usual Jeans-like instability new effects of amplification of perturbations, associated with parametric resonance and antifriction phenomena, are found.
Cite
@article{arxiv.1507.02152,
title = {Gravitational instability in oscillating background},
author = {E. V. Arbuzova and A. D. Dolgov and L. Reverberi},
journal= {arXiv preprint arXiv:1507.02152},
year = {2015}
}
Comments
21 pages, 14 figures