Horizons and singularity in Clifton's spherical solution of f(R) vacuum
General Relativity and Quantum Cosmology
2015-05-19 v1
Abstract
Due to the failure of Birkhoff's theorem, black holes in f(R) gravity theories in which an effective time-varying cosmological "constant" is present are, in general, dynamical. Clifton's exact spherical solution of R^(1+\delta) gravity, which is dynamical and describes a central object embedded in a spatially flat universe, is studied. It is shown that apparent black hole horizons disappear and a naked singularity emerges at late times.
Keywords
Cite
@article{arxiv.1005.5397,
title = {Horizons and singularity in Clifton's spherical solution of f(R) vacuum},
author = {Valerio Faraoni},
journal= {arXiv preprint arXiv:1005.5397},
year = {2015}
}
Comments
12 pages, LaTeX, 1 figure. Written for the proceedings of the workshop "Cosmology, Quantum Vacuum and Zeta Functions" in honour of Professor Emilio Elizalde's 60th birthday, Barcelona, March 8-10, 2010,