Publication date: Feb 2013
We study non-geodesic corrections to the quasicircular 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 fully-
relativistic approach we determine influence of the electromagnetic
interaction (both attractive and repulsive) on the quasicircular motion.
We focus on the behaviour of the orbital and epicyclic frequencies of
the motion. Components of the four-velocity of the orbiting charged test
particles are obtained by numerical solution of equations of motion, the
epicyclic frequencies are obtained by using the standard perturbative
method. The role of the combined effect of the neutron star magnetic
field and its rotation in the character of the orbital and epicyclic
frequencies is discussed.
Bakala, Pavel; Urbanec, Martin; Šrámková, Eva; Stuchlík, Zdeněk; Török, Gabriel;