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Charged particle motion around non-singular black holes in conformal gravity in the presence of external magnetic field

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arxiv 2005.04752 v2 pith:HARLHFNP submitted 2020-05-10 gr-qc

classification gr-qc
keywords magneticblackconformalfieldgravityaroundchargedholes
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abstract

We consider electromagnetic fields and charged particle dynamics around non-singular black holes in conformal gravity immersed in an external, asymptotically uniform magnetic field. First, we obtain analytic solutions of the electromagnetic field equation around rotating non-singular black holes in conformal gravity. We show that the radial components of the electric and magnetic fields increase with the increase of the parameters $L$ and $N$ of the black hole solution. Second, we study the dynamics of charged particles. We show that the increase of the values of the parameters $L$ and $N$ and of magnetic field causes a decrease in the radius of the innermost stable circular orbits (ISCO) and the magnetic coupling parameter can mimic the effect of conformal gravity giving the same ISCO radius up to $\omega_{\rm B}\leq 0.07$ when $N=3$.

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  1. Influence of external magnetic fields on charged particle motion around a Schwarzschild-like black hole

    gr-qc 2025-06 reject novelty 4.0 of 10

    The paper derives ISCO radii, collision energies, and QPO frequencies for charged particles around a Schwarzschild-like black hole in an external magnetic field, but the dimensionless equations contain an internal inc...

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