Chameleon stars
Solar and Stellar Astrophysics
2013-05-29 v2 General Relativity and Quantum Cosmology
Abstract
We consider a gravitating spherically symmetric configuration consisting of a scalar field non-minimally coupled to ordinary matter in the form of a perfect fluid. For this system we find static, regular, asymptotically flat solutions for both relativistic and non-relativistic cases. It is shown that the presence of the non-minimal interaction leads to substantial changes both in the radial matter distribution of the star and in the star's total mass. A simple stability test indicates that, for the choice of parameters used in the paper, the solutions are unstable.
Cite
@article{arxiv.1106.1267,
title = {Chameleon stars},
author = {V. Dzhunushaliev and V. Folomeev and D. Singleton},
journal= {arXiv preprint arXiv:1106.1267},
year = {2013}
}
Comments
final version, to be published in PRD