Nonminimal global monopoles and bound orbits
General Relativity and Quantum Cosmology
2010-11-19 v1 Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We perform a numerical analysis of the gravitational field of a global monopole coupled nonminimally to gravity, and find that, for some given nonminimal couplings (in constrast with the minimal coupling case), there is an attractive region where bound orbits exist. We exhibit the behavior of the frequency shifts that would be associated with `rotation curves' of stars in circular orbits in the spacetimes of such global monopoles.
Keywords
Cite
@article{arxiv.gr-qc/0002001,
title = {Nonminimal global monopoles and bound orbits},
author = {Ulises Nucamendi and Marcelo Salgado and Daniel Sudarsky},
journal= {arXiv preprint arXiv:gr-qc/0002001},
year = {2010}
}
Comments
5 pages, 4 figures, LaTeX File. Accepted for publication in Phys.Rev.Lett