Mixed neutron-star-plus-wormhole systems: Linear stability analysis
General Relativity and Quantum Cosmology
2013-06-04 v2 Solar and Stellar Astrophysics
Abstract
We consider configurations consisting of a neutron star with a wormhole at the core. The wormhole is held open by a ghost scalar field with a quartic coupling. The neutron matter is described by a perfect fluid with a polytropic equation of state. We obtain static regular solutions for these systems. A stability analysis, however, shows that they are unstable with respect to linear perturbations.
Keywords
Cite
@article{arxiv.1302.5217,
title = {Mixed neutron-star-plus-wormhole systems: Linear stability analysis},
author = {Vladimir Dzhunushaliev and Vladimir Folomeev and Burkhard Kleihaus and Jutta Kunz},
journal= {arXiv preprint arXiv:1302.5217},
year = {2013}
}
Comments
15 pages, 4 figures, minor corrections to content, references added, version published in PRD