Spherically Symmetric Solutions in Massive Gravity and Constraints from Galaxies
General Relativity and Quantum Cosmology
2011-11-28 v1 Cosmology and Nongalactic Astrophysics
Abstract
In this paper, analytical solutions describing static and spherically symmetric sources in the decoupling limit of massive gravity are derived. We analyze the model parameter range and specify when a Vainshtein mechanism is possible. Furthermore, we use gravitational lensing and velocity dispersion data from galaxies to put constraints on the mass scale of the graviton. The result for the inverse graviton mass scale lambda_g = h/(2pi)/(c m_g), in units of the Hubble radius r_H=c/H_0, is of the order lambda_g/r_H > 0.01-0.02 at 95% confidence level.
Keywords
Cite
@article{arxiv.1111.5961,
title = {Spherically Symmetric Solutions in Massive Gravity and Constraints from Galaxies},
author = {Stefan Sjors and Edvard Mortsell},
journal= {arXiv preprint arXiv:1111.5961},
year = {2011}
}
Comments
20 pages, 3 figures