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

被引：24

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

共 59 条

[1] Is there supernova evidence for dark energy metamorphosis? [J].

Alam, U ;

Sahni, V ;

Saini, TD ;

Starobinsky, AA .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2004, 354 (01) :275-291

[2]

[Anonymous], 1961, Teor. Fiz

[3]

[Anonymous], 1996, Stars and Relativity

[4] On a class of stable, traversable Lorentzian wormholes in classical general relativity -: art. no. 104010 [J].

Armendáriz-Picón, C .

PHYSICAL REVIEW D, 2002, 65 (10) :10

[5]

Bronnikov K. A., 2005, Gravitation & Cosmology, V11, P75

[6]

Bronnikov K. A., 2004, Gravitation & Cosmology, V10, P237

[7] Instabilities of wormholes and regular black holes supported by a phantom scalar field [J].

Bronnikov, K. A. ;

Konoplya, R. A. ;

Zhidenko, A. .

PHYSICAL REVIEW D, 2012, 86 (02)

[8] On the stability of scalar-vacuum space-times [J].

Bronnikov, K. A. ;

Fabris, J. C. ;

Zhidenko, A. .

EUROPEAN PHYSICAL JOURNAL C, 2011, 71 (11) :1-12

[9]

Bronnikov K. A., 2001, Gravitation & Cosmology, V7, P297

[10]

Bronnikov K. A., 1973, Acta Physica Polonica B, VB4, P251

← 1 2 3 4 5 6 →