15 papers
From Størmer to Schwarzschild: Analytical Dynamics of Charged Particles in a Dipole Magnetosphere
Francisco S. N. Lobo, Tiberiu Harko
We investigate the conservative dynamics of relativistic charged particles in a Schwarzschild spacetime threaded by an externally supported dipolar magnetic field. The gravitationa…
Radiation reaction in the classical relativistic Størmer problem
Francisco S. N. Lobo, Tiberiu Harko
We extend the classical relativistic Størmer problem by incorporating radiation reaction through the Landau--Lifshitz formulation, thereby providing a self-consistent description o…
Exact solutions, trajectories and radiation patterns in the classical relativistic Störmer problem
Tiberiu Harko, Francisco S. N. Lobo
We investigate the relativistic generalization of the classical Störmer problem, which describes the motion of charged particles in a purely magnetic dipole field. By incorporatin…
Exact general relativistic solutions for a cylindrically symmetric stiff fluid matter source
Tiberiu Harko, Francisco S. N. Lobo, Man Kwong Mak
In this work, we derive the general solutions for a cylindrically symmetric space-time filled with a cosmological perfect fluid obeying (), where repres…
Rotation of the polarization plane in axion fields: application to neutron star polar cap regions
Iver H. Brevik, Moshe M. Chaichian, Tiberiu Harko +1
We study observable manifestations of an axion field, focusing on possible polarizational effects for electromagnetic wave propagating in such a special magnetoelectric medium. The…
Bose-Einstein Condensate dark matter with logarithmic nonlinearity
Zahra Haghani, Tiberiu Harko
If dark matter is composed of massive bosons, a Bose-Einstein Condensation process must have occurred during the cosmological evolution. Therefore, galactic dark matter may be in a…