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

被引：4

作者：

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

Folomeev, Vladimir ^{[2
,3
,4
,5
]}

Kleihaus, Burkhard ^{[4
]}

Kunz, Jutta ^{[4
]}

机构：

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

[2] Al Farabi Kazakh Natl Univ, Inst Expt & Theoret Phys, Alma Ata 050040, Kazakhstan

[3] NAS Kyrgyz Republ, Academician J Jeenbaev Inst Phys, 265Chui St, Bishkek 720071, Kyrgyzstan

[4] Carl von Ossietzky Univ Oldenburg, Inst fir Phys, Postfach 2503, D-26111 Oldenburg, Germany

[5] Tomsk State Univ Control Syst & Radioelect TUSUR, Int Ctr Grav & Cosmos, Lab Theoret Cosmol, Tomsk 634050, Russia

来源：

PHYSICAL REVIEW D | 2023年 / 107卷 / 04期

关键词：

PARTICLE MODEL; FIELD; DRAINHOLE;

D O I：

10.1103/PhysRevD.107.044060

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present rapidly rotating neutron stars featuring wormholes in their centers. They arise in general relativity in the presence of a ghost scalar field. The nuclear matter is described by a polytropic equation of state, yielding realistic masses and radii for the neutron stars. The wormholes possess small circumferential radii of size up to 3 km. With increasing wormhole size, the masses and radii of the stars decrease, while the domain of existence of these rotating mixed neutron-star-plus-wormhole systems retains the characteristic properties of a rotating neutron star domain. The question of stability of the mixed configurations under consideration is briefly discussed.

引用

页数：9

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