Electromagnetic fields of slowly rotating compact magnetized stars in braneworld

被引：13

作者：

Morozova, V. S. ^{[1
,2
]}

Ahmedov, B. J. ^{[1
,2
,3
]}

机构：

[1] Ulugh Begh Astron Inst, Tashkent 100052, Uzbekistan

[2] Inst Nucl Phys, Tashkent 100214, Uzbekistan

[3] Abdus Salaam Int Ctr Theoret Phys, I-34014 Trieste, Italy

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2011年 / 333卷 / 01期

关键词：

Compact stars; Braneworld; Brane tension; Electromagnetic field; NEUTRON-STAR; BLACK-HOLES; GRAVITOMAGNETIC CHARGE; RELATIVISTIC STAR; OBJECTS; COSMOLOGY; EQUATIONS; EVOLUTION; EXTERIOR;

D O I：

10.1007/s10509-010-0560-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the structure of electromagnetic field of slowly rotating magnetized star in a Randall-Sundrum II type braneworld. The star is modeled as a sphere consisting of perfect highly magnetized fluid with infinite conductivity and frozen-in dipolar magnetic field. Maxwell's equations for the external magnetic field of the star in the braneworld are analytically solved in approximation of small distance from the surface of the star. We have also found numerical solution for the electric field outside the rotating magnetized neutron star in the braneworld in dependence on brane tension. The influence of brane tension on the electromagnetic energy losses of the rotating magnetized star is underlined. Obtained "brane" corrections are shown to be relevant and have non-negligible values. In comparison with astrophysical observations on pulsars spindown data they may provide an evidence for the brane tension and, thus, serve as a test for the braneworld model of the Universe.

引用

页码：133 / 142

页数：10

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