Particle motion and electromagnetic fields of rotating compact gravitating objects with gravitomagnetic charge

被引：60

作者：

Abdujabbarov, A. A. ^{[1
,4
]}

Ahmedov, B. J. ^{[1
,2
,4
]}

Kagramanova, V. G. ^{[3
]}

机构：

[1] Inst Nucl Phys, Tashkent 100052, Uzbekistan

[2] Abdus Salam Int Ctr Theoret Phys, I-34014 Trieste, Italy

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

[4] Ulugh Beg Astron Inst, Tashkent 100052, Uzbekistan

来源：

GENERAL RELATIVITY AND GRAVITATION | 2008年 / 40卷 / 12期

关键词：

General relativity; Kerr-Taub-NUT spacetime; Electromagnetic fields; Particle motion;

D O I：

10.1007/s10714-008-0635-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The exact solution for the electromagnetic field occuring when the Kerr-Taub-NUT compact object is immersed (i) in an originally uniform magnetic field aligned along the axis of axial symmetry (ii) in dipolar magnetic field generated by current loop has been investigated. Effective potential of motion of charged test particle around Kerr-Taub-NUT gravitational source immersed in magnetic field with different values of external magnetic field and NUT parameter has been also investigated. In both cases presence of NUT parameter and magnetic field shifts stable circular orbits in the direction of the central gravitating object. Finally we find analytical solutions of Maxwell equations in the external background spacetime of a slowly rotating magnetized NUT star. The star is considered isolated and in vacuum, with monopolar configuration model for the stellar magnetic field.

引用

页码：2515 / 2532

页数：18

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