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We study the dynamics of a charged particle in the field of a slowly rotating compact star in the gravitoelectromagnetic approximation to the geodesic equation . The star is assumed to be surrounded by an ideal, highly conducting plasma…

天体物理学 · 物理学 2009-11-10 Babur M. Mirza

We obtain a new class of exact solutions for the Einstein-Maxwell system in static spherically symmetric charged star in (2+1)-dimensional gravity. In order to obtain the analytical solutions we treat the matter distribution anisotropic in…

广义相对论与量子宇宙学 · 物理学 2015-06-22 Ayan Banerjee , Farook Rahaman , Tanuka Chattopadhyay

A four-parameter class of exact asymptotically flat solutions of the Einstein-Maxwell equations involving only rational functions is presented. It is able to describe the exterior field of a slowly or rapidly rotating neutron star with…

广义相对论与量子宇宙学 · 物理学 2009-12-30 Vladimir S. Manko , Eckehard W. Mielke , José D. Sanabria-Gómez

We present the first numerical solutions of the coupled Einstein-Maxwell equations describing rapidly rotating neutron stars endowed with a magnetic field. These solutions are fully relativistic and self-consistent, all the effects of the…

广义相对论与量子宇宙学 · 物理学 2007-05-23 M. Bocquet , S. Bonazzola , E. Gourgoulhon , J. Novak

We study static, spherically symmetric, self-gravitating systems minimally coupled to a scalar field with U(1) gauge symmetry: charged boson stars. We find numerical solutions to the EinsteinMaxwell equations coupled to the relativistic…

高能天体物理现象 · 物理学 2013-08-05 Daniela Pugliese , Hernando Quevedo , Jorge A. Rueda H. , Remo Ruffini

We present analytic solutions of Maxwell equations in the internal and external background spacetime of a slowly rotating magnetized neutron star. The star is considered isolated and in vacuum, with a dipolar magnetic field not aligned with…

天体物理学 · 物理学 2009-10-31 L. Rezzolla , B. J. Ahmedov , J. C. Miller

We obtain a class of rotating charged stationary circularly symmetric solutions of Einstein-Maxwell theory coupled to a topological mass term for the Maxwell field. These solutions are regular, have finite mass and angular momentum, and are…

广义相对论与量子宇宙学 · 物理学 2008-02-03 Sharmanthie Fernando , Freydoon Mansouri

We study charged and rotating boson stars in 5-dimensional Einstein-Maxwell(-Chern-Simons) theory assuming the two angular momenta associated to the two orthogonal planes of rotation to be equal. Next to the angular momenta, the boson stars…

广义相对论与量子宇宙学 · 物理学 2023-07-12 Yves Brihaye , Betti Hartmann

In this chapter we review the recent results on the equilibrium configurations of static and uniformly rotating neutron stars within the Hartle formalism. We start from the Einstein-Maxwell-Thomas-Fermi equations formulated and extended by…

高能天体物理现象 · 物理学 2016-09-03 Kuantay Boshkayev

A new six-parametric, axisymmetric and asymptotically flat exact solution of Einstein-Maxwell field equations having reflection symmetry is presented. It has arbitrary physical parameters of mass, angular momentum, mass--quadrupole moment,…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Leonardo. A. Pachon , Jorge A. Rueda , Jose D. Sanabria-Gomez

In this work we find charged slowly rotating solutions in the four-dimensional Einstein-power-Maxwell non-linear electrodynamics assuming a negative cosmological constant. By solving the system of coupled field equations explicitly we…

广义相对论与量子宇宙学 · 物理学 2018-09-05 Grigoris Panotopoulos , Angel Rincon

Neutron stars are usually modelled as spherical, rotating perfect conductors with a predominant intrinsic dipolar magnetic field anchored to their stellar crust. Due to their compactness, General Relativity corrections must be accounted for…

高能天体物理现象 · 物理学 2024-01-09 R. Torres , T. Grismayer , F. Cruz , L. O. Silva

We report on general relativistic calculations of quasiequilibrium configurations of binary neutron stars in circular orbits with zero vorticity. These configurations are expected to represent realistic situations as opposed to corotating…

广义相对论与量子宇宙学 · 物理学 2009-10-31 S. Bonazzola , E. Gourgoulhon , J. -A. Marck

Stationary and axisymmetric solutions of relativistic rotating stars with strong mixed poloidal and toroidal magnetic fields are obtained numerically. Because of the mixed components of the magnetic field, the underlying stationary and…

高能天体物理现象 · 物理学 2014-11-13 Koji Uryu , Eric Gourgoulhon , Charalampos Markakis , Kotaro Fujisawa , Antonios Tsokaros , Yoshiharu Eriguchi

In this paper, we discuss the results of a new particle pusher in realistic ultra-strong electromagnetic fields as those encountered around rotating neutron stars. After presenting results of this algorithm in simple fields and comparing…

高能天体物理现象 · 物理学 2020-09-09 Ivan Tomczak , Jérôme Pétri

We investigate charge accretion in vicinity of a slowly rotating compact star with a non-stationary electromagnetic field. Exact solutions to the general relativistic Maxwell equations are obtained for a star formed of a highly degenerate…

天体物理学 · 物理学 2016-06-22 Babur M. Mirza

A theoretical study of some electrodynamic features of a region close to a {\it slowly-rotating} magnetized relativistic star is performed. To be a little more specific, based on the solution-generating method given by Wald, the magnetic…

天体物理学 · 物理学 2007-05-23 Hongsu Kim , Hyung Mok Lee , Chul H. Lee , Hyun Kyu Lee

In this work, we provide a novel exact solution to the Einstein-Maxwell field equations in isotropic coordinates for charged anisotropic matter distribution, achieved by considering one of the metric potentials as well as a particular form…

广义相对论与量子宇宙学 · 物理学 2025-08-25 B S Ratanpal , Bhavesh Suthar

In this paper, we generalize the Schwarzschild-Melvin solution within Einstein-Maxwell-dilaton theories to include non-null scalar charges, while remaining embedded in a magnetic or electric field \textit{\`a la Melvin}. We then use this…

广义相对论与量子宇宙学 · 物理学 2025-05-08 Olivier Minazzoli , Maxime Wavasseur

Astrophysical compact stars provide a natural laboratory for testing theoretical models which are otherwise difficult to prove from an experimental setup. In our present work we analyse an exact solution to the Einstein-Maxwell system for a…

广义相对论与量子宇宙学 · 物理学 2015-06-23 P. Mafa Takisa , S. Ray , S. D. Maharaj
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