scholarly journals Dynamics of an electric current-carrying string loop near a Schwarzschild black hole embedded in an external magnetic field

2013 ◽  
Vol 87 (12) ◽  
Author(s):  
Arman Tursunov ◽  
Martin Kološ ◽  
Bobomurat Ahmedov ◽  
Zdeněk Stuchlík
Keyword(s):  
Magnetic Field ◽  
Black Hole ◽  
External Magnetic Field ◽  
Electric Current ◽  
Schwarzschild Black Hole ◽  
String Loop

ON ERNST BLACK HOLES WITH A DILATON POTENTIAL

2005 ◽  
Vol 20 (14) ◽  
pp. 1077-1085 ◽  
Author(s):  
MARICEL AGOP ◽  
EUGEN RADU ◽  
REINOUD SLAGTER
Keyword(s):  
Magnetic Field ◽  
Black Holes ◽  
Black Hole ◽  
External Magnetic Field ◽  
Thermodynamic Properties ◽  
Action Principle ◽  
Schwarzschild Black Hole ◽  
Liouville Type ◽  
Background Magnetic Field ◽  
Type Potential

The dilatonic Ernst solution describing a Schwarzschild black hole immersed in a background magnetic field is generalized by including a Liouville-type potential in the action principle. We prove that the thermodynamic properties of this new black hole dilaton solution are unaffected by an external magnetic field passing through it.

scholarly journals A NOTE ON SCHWARZSCHILD BLACK HOLE THERMODYNAMICS IN A MAGNETIC UNIVERSE

2002 ◽  
Vol 17 (34) ◽  
pp. 2277-2281 ◽  
Author(s):  
EUGEN RADU
Keyword(s):  
Magnetic Field ◽  
Black Hole ◽  
External Magnetic Field ◽  
Thermodynamic Properties ◽  
Background Subtraction ◽  
Black Hole Thermodynamics ◽  
Schwarzschild Black Hole

We prove that the thermodynamic properties of a Schwarzschild black hole are unaffected by an external magnetic field passing through it. Apart from the background subtraction prescription, this result is also obtained by using a counterterm method.

scholarly journals 50. Magneto-hydrostatic equilibrium in an external magnetic field

1958 ◽  
Vol 6 ◽  
pp. 499-503 ◽  
Author(s):  
P. A. Sweet
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Electric Current ◽  
Virial Theorem ◽  
Magnetic Energy ◽  
Hydrostatic Equilibrium

The expression ∫∫∫all space ΔH2dv for a change in magnetic energy is shown to be incorrect when applied to a body carrying an electric current and situated in an external magnetic field. A modified expression is derived.Chandrasekhar's form of the virial theorem in a magnetic field is extended to the case where an external magnetic field is present.

Polar trajectories around a black hole in a magnetic field

1989 ◽  
Vol 67 (10) ◽  
pp. 971-973
Author(s):  
K. D. Krori ◽  
J. C. Sarmah
Keyword(s):  
Magnetic Field ◽  
Black Hole ◽  
Angular Momentum ◽  
Test Particle ◽  
Field Parameter ◽  
Schwarzschild Black Hole ◽  
Magnetic Field Parameter ◽  
Neutral Test ◽  
Test Particles ◽  
The Magnetic Field

In this paper, we present a study of the stable polar trajectories ([Formula: see text] = constant plane) of neutral test particles around a Schwarzschild black hole embedded in a magnetic field. We also show how the nature of these trajectories changes with the variation in the angular momentum of the test particle and the magnetic field parameter.

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