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

被引：25

作者：

Dzhunushaliev, Vladimir ^{[1
,2
,3
,4
]}

Folomeev, Vladimir ^{[3
,4
]}

Kleihaus, Burkhard ^{[4
]}

Kunz, Jutta ^{[4
]}

机构：

[1] Kazakh Natl Univ, Dept Theoret & Nucl Phys, Alma Ata 050040, Kazakhstan

[2] Eurasian Natl Univ, Inst Basic Res, Astana 010008, Kazakhstan

[3] NAS Kyrgyz Republ, Inst Physicotech Problems & Mat Sci, Bishkek 720071, Kyrgyzstan

[4] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg, Germany

来源：

PHYSICAL REVIEW D | 2013年 / 87卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.87.104036

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

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.

引用

页数：12

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