RT info:eu-repo/semantics/article
T1 Dynamo effect of spacetime curvature in force-free magnetospheres
A1 Núñez Jiménez, Manuel
K1 General-relativistic magnetohydrodynamics
K1 Black-hole magnetospheres
K1 Electrodynamics
K1 Magnetodynamics
AB We study the possibility of growth of the electric and magnetic fields in a force-free plasma due strictlyto the gravitational curvature of the spacetime domain where those fields lie. To this end, we identify atotal energy by analogy with the results of classical magnetohydrodynamics. After obtaining the generalevolution equation for the total energy, we apply to it to the fiducial observers in a number of classicalmetrics: 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 thedetails are often highly intricate.
PB American Physical Society
SN 1550-7998
YR 2012
FD 2012
LK http://uvadoc.uva.es/handle/10324/39941
UL http://uvadoc.uva.es/handle/10324/39941
LA eng
NO PHYSICAL REVIEW D 85, 104038 (2012)
NO Producción Científica
DS UVaDOC
RD 14-oct-2024