Dynamics of a charged particle around a slowly rotating Kerr black hole immersed in magnetic field
Saqib Hussain (School of Natural Sciences (SNS), National University of Science and Technology (NUST), H-12, Islamabad, Pakistan); Ibrar Hussain (School of Electrical Engineering and Computer Science (SEECS), National University of Sciences and Technology (NUST), H-12, Islamabad, Pakistan); Mubasher Jamil (School of Natural Sciences (SNS), National University of Science and Technology (NUST), H-12, Islamabad, Pakistan)
The dynamics of a charged particle moving around a slowly rotating Kerr black hole in the presence of an external magnetic field is investigated. We are interested in exploring the conditions under which the charged particle can escape from the gravitational field of the black hole after colliding with another particle. The escape velocity of the charged particle in the innermost stable circular orbit is calculated. The effective potential and escape velocity of the charged particle with angular momentum in the presence of the magnetic field is analyzed. This work serves as an extension of a preceding paper dealing with the Schwarzschild black hole (Zahrani et al., Phys Rev D 87:084043, 2013 ).
