The Shadow of M87* Black Hole within Rational Nonlinear Electrodynamics

Sergey Kruglov

doi:10.20944/preprints202004.0228.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 12 April 2020 / Approved: 15 April 2020 / Online: 15 April 2020 (03:37:03 CEST)
Version 2 : Received: 25 August 2020 / Approved: 25 August 2020 / Online: 25 August 2020 (07:57:30 CEST)

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.

nonlinear electrodynamics; magnetic black holes; Event Horizon Telescope; M87* black hole

Physical Sciences, Particle and Field Physics

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The Shadow of M87* Black Hole within Rational Nonlinear Electrodynamics

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