Star-plus-wormhole systems with two interacting scalar fields
General Relativity and Quantum Cosmology
2015-09-08 v2 Solar and Stellar Astrophysics
Abstract
We study static, spherically symmetric mixed configurations with a nontrivial (wormhole) spacetime topology provided by the presence of two interacting ghost scalar fields. Wormhole is assumed to be filled by a perfect relativistic neutron fluid modeled by a polytropic equation of state. For such mixed configurations, we find regular, asymptotically flat general relativistic solutions. It is shown that the maximum of the fluid density is always shifted from the center, and the resulting configurations represent, in general, double-throat systems.
Keywords
Cite
@article{arxiv.1506.03897,
title = {Star-plus-wormhole systems with two interacting scalar fields},
author = {Vladimir Dzhunushaliev and Vladimir Folomeev and Ajnur Urazalina},
journal= {arXiv preprint arXiv:1506.03897},
year = {2015}
}
Comments
10 pages, 3 figures, minor corrections to content, new references added, version published in IJMPD. arXiv admin note: text overlap with arXiv:1401.7093