Mixed neutron-star-plus-wormhole systems: Equilibrium configurations

被引：23
作者：
Dzhunushaliev, Vladimir [1 ,2 ,3 ]
Folomeev, Vladimir [2 ,3 ]
Kleihaus, Burkhard [3 ]
Kunz, Jutta [3 ]
机构：
[1] Eurasian Natl Univ, Inst Basic Res, Astana 010008, Kazakhstan
[2] NAS Kyrgyz Republ, Inst Physicotech Problems & Mat Sci, Bishkek 720071, Kyrgyzstan
[3] Carl von Ossietzky Univ Oldenburg, Inst Phys, D-26111 Oldenburg, Germany
来源：
PHYSICAL REVIEW D | 2012年 / 85卷 / 12期
关键词：
STABILITY; EQUATION; MODEL; COLLAPSE; FIELD;
D O I：
10.1103/PhysRevD.85.124028
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study gravitationally bound, spherically symmetric equilibrium configurations consisting of ordinary (neutron-star) matter and of a phantom/ghost scalar field which provides the nontrivial topology in the system. For such mixed configurations, we show the existence of static, regular, asymptotically flat general relativistic solutions. Based on the energy approach, we discuss the stability as a function of the core density of the neutron matter for various sizes of the wormhole throat.
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页数：14
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