Publication date: Dec 2014
Abstract:
We study circular motion of charged test particles in the field of
magnetized slowly rotating neutron stars. The gravitational field is
approximated by the Lense-Thirring geometry, the magnetic field is of
the standard dipole character. Using a fullyrelativistic approach we
determine influence of the electromagnetic interaction (both attractive
and repulsive) on the circular motion. We focus on the behaviour of the
orbital frequency of the motion. Components of the four-velocity of the
orbiting charged test particles are obtained by numerical solution of
equations of motion. The role of the combined effect of the neutron star
magnetic field and its rotation in the character of the orbital
frequency is discussed. It is demonstrated that even in the Lense-
Thirring spacetime particles being static relative to distant observers
can exist due to the combined gravo-electromagnetic interactionc
Authors:
Bakala, Pavel; Urbanec, Martin; Šrámková, Eva; Stuchlík, Zdeněk; Török, Gabriel;