Submitted:
12 April 2020
Posted:
15 April 2020
Read the latest preprint version here
Abstract
We consider rational nonlinear electrodynamics coupled to General Relativity. The effective geometry induced by nonlinear electrodynamics corrections are found. We determine shadows of regular non-rotating magnetic black holes and compare them with the shadow of the super-massive M87* black hole imaged by the Event Horizon Telescope collaboration. This allows us to obtain the black hole magnetic charge. The size of the shadow is very close to the shadow of non-regular neutral Schwarzschild black holes. As a result, we can interpret the super-massive M87* black hole as a regular (without singularities) magnetized black hole.
Keywords:
nonlinear electrodynamics
; magnetic black holes
; Event Horizon Telescope
; M87* black hole
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