Kn. Mishra et Dk. Chakraborty, Orbits of a charged particle in a skew uniform magnetic field on Kerr background geometry, ASTRO SP SC, 260(4), 1998, pp. 441-454
In this paper we discuss the particle trajectories in a uniform magnetic fi
eld superimposed on Kerr geometry. The rotation axis of the Kerr black hole
makes an angle with the asymptotic magnetic field. We find that the partic
le is trapped for suitable initial conditions.