Pseudo-Newtonian potential for charged particle in Kerr-Newman geometry

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Abstract

We consider the equatorial circular motion of a test particle of specific charge q≪m in the Kerr-Newman geometry of a rotating charged black hole. We find the particle's conserved energy and conserved projection of the angular momentum on the black hole's axis of rotation as corrections, in leading order of q/m, to the corresponding energy and angular momentum of a neutral particle. We determine the centripetal force acting on the test particle and, consequently, we find a classical pseudo-Newtonian potential with which one can mimic this general relativistic problem.

Original languageEnglish
Pages (from-to)34-38
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume611
Issue number1-2
DOIs
Publication statusPublished - 31 Mar 2005
Externally publishedYes

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