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In this book, rotation dynamics of galaxies is described using coupled field equations for the gravitational and electromagnetic fields. Relativistic frame-dragging effect is one of the consequences predicted by the general theory of relativity for rotating masses. However, except for strong gravitational sources, the spacetime dragging is too weak to produce significant modifications around rotating astrophysical systems. Here it is shown that, in the case of gravitational and magnetic field coupling, the effects of magnetic field energy density are enhanced. An outward dragging caused by...

Astrophysical processes in compact stars can be
largely divided into two classes, namely radiative
and material. Due to extremely strong gravitational
field of these stars both type of processes are
effected by the gravitational field of the compact
object. In theses cases the Newtonian approximation
to the gravitational field breaks up and the
relativistically correct laws must be used to
describe any phenomenon related to compact stars.
Gravitoelectromagnetic approximation provides such a
frame-work.
This monograph discusses the gravitoelectromagnetic
approximation and its...