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Título
Dynamo effect of spacetime curvature in force-free magnetospheres
Autor
Año del Documento
2012
Editorial
American Physical Society
Descripción
Producción Científica
Documento Fuente
PHYSICAL REVIEW D 85, 104038 (2012)
Résumé
We study the possibility of growth of the electric and magnetic fields in a force-free plasma due strictly
to the gravitational curvature of the spacetime domain where those fields lie. To this end, we identify a
total energy by analogy with the results of classical magnetohydrodynamics. After obtaining the general
evolution equation for the total energy, we apply to it to the fiducial observers in a number of classical
metrics: Schwarzschild, Boyer-Lindquist, Kerr-Schild, Robertson-Walker, and post-Newtonian approximation.
As a rule the shift velocity plays the role of minus the fluid velocity in Newtonian MHD, but the
details are often highly intricate.
Palabras Clave
General-relativistic magnetohydrodynamics
Black-hole magnetospheres
Electrodynamics
Magnetodynamics
ISSN
1550-7998
Revisión por pares
SI
Version del Editor
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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