Constraining study of circular orbits and accretion disk around nonlinear electrodynamics black hole

Abstract

The very latest observation of $M87$ supermassive black hole (BH) by the Event Horizon Telescope (EHT) provides the accretion onto BHs is an interesting study in the theory of gravity. We study the geodesics structure and accretion near a nonlinear electrodynamics BH in strong and weak field approximations. These approximations provide the disc-like structure under the geodesic motion and accretion around the BH. Near the equatorial plane, we provide some new reasons to make circular orbits and accretion of test particles around the BH. Then we investigate perturbations, the critical speed of the fluid and the mass accretion rate of particles around the central object. The physical validity of this study shows that the parameter $\beta$ and $Q$ play an important role in the circular orbits and the mass accretion rate in strong and weak field approximations.

22 pages, 13 figures

References in corpus (11)

• First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
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• Nonlinear electrodynamics and black holes
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• Accretion onto a Charged Black Hole in Consistent 4D Einstein-Gauss-Bonnet Gravity
• Black holes surrounded by massive vector fields in Kaluza-Klein gravity