Publication date: Dec 2007
Abstract:
Being inspired by existence of non-equatorial circular (halo) stable
orbits of charged particles in composite of gravitational, dipole
magnetic and co-rotational electric fields near some planets, we find
possible existence of these orbits in strong gravitational fields
described by the Kerr-Newman geometry. By using the general relativistic
inertial forces formalism combined with the effective potential
approach, we show that the stable halo orbits do exist there. But it
seems that they are out of the astrophysical importance, being hidden
under the inner black-hole horizon, or appearing in the naked
singularity spacetimes.
Authors:
Kovář, Jiří; Stuchlík, Zdeněk; Karas, Vladimír;