General relativistic problem of charged fluid with purely magnetic field

1993 ◽  
Vol 36 (9) ◽  
pp. 848-851
Author(s):  
A. M. Upornikov
Keyword(s):  
Magnetic Field ◽  
Charged Fluid ◽  
Relativistic Problem ◽  
General Relativistic

scholarly journals ELECTROMAGNETIC FIELDS OF CHARGED AND MAGNETIZED CYLINDRICAL CONDUCTORS IN NUT SPACE

2005 ◽  
Vol 14 (03n04) ◽  
pp. 687-695 ◽  
Author(s):  
B. J. AHMEDOV ◽  
A. V. KHUGAEV ◽  
N. I. RAKHMATOV
Keyword(s):  
Magnetic Field ◽  
Gravitational Field ◽  
Electromagnetic Fields ◽  
Electric Charge ◽  
Maxwell Equations ◽  
Analytic Solutions ◽  
Vertical Magnetic Field ◽  
General Relativistic ◽  
Azimuthal Current ◽  
Cylindrical Conductors

We present analytic solutions of Maxwell equations for infinitely long cylindrical conductors with nonvanishing electric charge and currents in the external background spacetime of a line gravitomagnetic monopole. It has been shown that vertical magnetic field arising around cylindrical conducting shell carrying azimuthal current will be modified by the gravitational field of NUT source. We obtain that the purely general relativistic magnetic field which has no Newtonian analog will be produced around charged gravitomagnetic monopole.

scholarly journals General Relativistic MHD Simulations of the Gravitational Collapse of a Rotating Star with Magnetic Field as a Model of Gamma-Ray Bursts

2004 ◽  
Vol 155 ◽  
pp. 387-388
Author(s):  
Yosuke Mizuno ◽  
Kazunari Shibata ◽  
Shoichi Yamada ◽  
Shinji Koide
Keyword(s):  
Magnetic Field ◽  
Gravitational Collapse ◽  
Gamma Ray ◽  
Gamma Ray Bursts ◽  
Mhd Simulations ◽  
General Relativistic ◽  
Rotating Star

scholarly journals Can accelerated expansion of the universe be due to spacetime vorticity?

2018 ◽  
Vol 33 (40) ◽  
pp. 1850240
Author(s):  
Babur M. Mirza
Keyword(s):  
Magnetic Field ◽  
Accelerated Expansion ◽  
Newtonian Gravity ◽  
Hubble’S Parameter ◽  
Cosmic Expansion ◽  
Zero Curvature ◽  
Expansion Of The Universe ◽  
General Relativistic ◽  
The Universe ◽  
The Magnetic Field

We present here a general relativistic mechanism for accelerated cosmic expansion and the Hubble’s parameter. It is shown that spacetime vorticity coupled to the magnetic field density in galaxies causes the galaxies to recede from one another at a rate equal to the Hubble’s constant. We therefore predict an oscillatory universe, with zero curvature, without assuming violation of Newtonian gravity at large distances or invoking dark energy/dark matter hypotheses. The value of the Hubble’s constant, along with the scale of expansion, as well as the high isotropy of CMB radiation are deduced from the model.

scholarly journals ENERGY ASSOCIATED WITH SCHWARZSCHILD BLACK HOLE IN A MAGNETIC UNIVERSE

2000 ◽  
Vol 15 (19) ◽  
pp. 2979-2986 ◽  
Author(s):  
S. S. XULU
Keyword(s):  
Magnetic Field ◽  
Black Hole ◽  
Uniform Magnetic Field ◽  
Relativistic Effect ◽  
Rest Mass ◽  
Mass Energy ◽  
Schwarzschild Black Hole ◽  
General Relativistic ◽  
The Magnetic Field ◽  
General Relativistic Effect

In this paper we obtain the energy distribution associated with the Ernst space–time (geometry describing Schwarzschild black hole in Melvin's magnetic universe) in Einstein's prescription. The first term is the rest-mass energy of the Schwarzschild black hole, the second term is the classical value for the energy of the uniform magnetic field and the remaining terms in the expression are due to the general relativistic effect. The presence of the magnetic field is found to increase the energy of the system.

MAGNETIZED ROTATING NEUTRON STARS SIMULATED BY GENERAL-RELATIVISTIC POLYTROPIC MODELS: THE NUMERICAL TREATMENT

2011 ◽  
Vol 22 (10) ◽  
pp. 1107-1137
Author(s):  
V. S. GEROYANNIS ◽  
A. G. KATELOUZOS ◽  
F. N. VALVI
Keyword(s):  
Magnetic Field ◽  
Neutron Stars ◽  
Liouville Problem ◽  
Spherical Shape ◽  
Rotation Periods ◽  
Prolate Shape ◽  
Shafranov Equation ◽  
General Relativistic ◽  
Sturm Liouville ◽  
The Magnetic Field

We compute general-relativistic polytropic models of magnetized rotating neutron stars, assuming that magnetic field and rotation can be treated as decoupled perturbations acting on the nondistorted configuration. Concerning the magnetic field, we develop and apply a numerical method for solving the relativistic Grad–Shafranov equation as a nonhomogeneous Sturm–Liouville problem with nonstandard boundary conditions. We present significant geometrical and physical characteristics of six models, four of which are models of maximum mass. We find negative ellipticities owing to a magnetic field with both toroidal and poloidal components; thus the corresponding configurations have prolate shape. We also compute models of magnetized rotating neutron stars with almost spherical shape due to the counterbalancing of the rotational effect (tending to yield oblate configurations) and the magnetic effect (tending in turn to derive prolate configurations). In this work such models are simply called "equalizers." We emphasize on numerical results related to magnetars, i.e. ultramagnetized neutron stars with relatively long rotation periods.

scholarly journals Dissipative charged fluid in a magnetic field

2016 ◽  
Vol 756 ◽  
pp. 161-165 ◽  
Author(s):  
Navid Abbasi ◽  
Ali Davody
Keyword(s):  
Magnetic Field ◽  
Charged Fluid

General-relativistic hydrodynamics of a collisionless plasma in a strong magnetic field

1992 ◽  
Vol 46 (2) ◽  
pp. 1078-1083 ◽  
Author(s):  
E. G. Tsikarishvili ◽  
J. G. Lominadze ◽  
A. D. Rogava ◽  
J. I. Javakhishvili
Keyword(s):  
Magnetic Field ◽  
Strong Magnetic Field ◽  
Collisionless Plasma ◽  
Relativistic Hydrodynamics ◽  
General Relativistic

General-relativistic interior metric for a static charged fluid ball with pressure

1973 ◽  
Vol 6 (2) ◽  
pp. 49-52 ◽  
Author(s):  
M. Omote
Keyword(s):  
Charged Fluid ◽  
Fluid Ball ◽  
General Relativistic

QUASI-STATIONARY ELECTROMAGNETIC EFFECTS IN CONDUCTORS AND SUPERCONDUCTORS IN SCHWARZSCHILD SPACE–TIME

2005 ◽  
Vol 14 (05) ◽  
pp. 817-835 ◽  
Author(s):  
B. J. AHMEDOV ◽  
F. J. FATTOYEV
Keyword(s):  
Magnetic Field ◽  
Gravitational Field ◽  
Neutron Stars ◽  
Penetration Depth ◽  
Skin Effect ◽  
Outer Core ◽  
Point Of View ◽  
Time Dependent ◽  
General Relativistic ◽  
Stationary Gravitational Field

The general principles needed to compute the effect of a stationary gravitational field on the quasistationary electromagnetic phenomena in normal conductors and superconductors are formulated from general relativistic point of view. Generalization of the skin effect, that is the general relativistic modification of the penetration depth (of the time-dependent magnetic field in the conductor) due to its relativistic coupling to the gravitational field is obtained. The effect of the gravitational field on the penetration and coherence depths in superconductors is also studied. As an illustration of the foregoing general results, we discuss their application to superconducting systems in the outer core of neutron stars. The relevance of these effects to electrodynamics of magnetized neutron stars has been shown.

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