Mixed neutron-star-plus-wormhole systems: Linear stability analysis

作者:Dzhunushaliev Vladimir*; Folomeev Vladimir; Kleihaus Burkhard; Kunz Jutta
来源:PHYSICAL REVIEW D, 2013, 87(10): 104036.
DOI:10.1103/PhysRevD.87.104036

摘要

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.

  • 出版日期2013-5-28