Magnetically charged black holes from non-linear electrodynamics and the Event Horizon Telescope

Abstract

Non-linear electrodynamics (NLED) theories are well-motivated extensions of QED in the strong field regime, and have long been studied in the search for regular black hole (BH) solutions. We consider two well-studied and well-motivated NLED models coupled to General Relativity: the Euler-Heisenberg model and the Bronnikov model. After carefully accounting for the effective geometry induced by the NLED corrections, we determine the shadows of BHs within these two models. We then compare these to the shadow of the supermassive BH M87* recently imaged by the Event Horizon Telescope collaboration. In doing so, we are able to extract upper limits on the black hole magnetic charge, thus providing novel constraints on fundamental physics from this new extraordinary probe.

28 pages, 9 figures, 4 tables, accepted for publication in JCAP

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• QED Effect on Black Hole Shadow
• No-Hair Theorem in the Wake of Event Horizon Telescope
• Testing Rotating Regular Metrics as Candidates for Astrophysical Black Holes
• Thermal Image and Phase Transitions of Charged AdS Black Holes using Shadow Analysis
• Constraining the tidal charge of brane black holes using their shadows
• Quasinormal modes, shadow and greybody factors of 5D electrically charged Bardeen black holes
• Rotating black holes without ${\mathbb{Z}}_2$ symmetry and their shadow images
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• Mimetic Euler-Heisenberg theory, charged solutions and multi-horizon black holes
• Weak deflection angle by Casimir wormhole using Gauss-bonnet theorem and its shadow
• Weak Deflection angle and Shadow by Tidal Charged Black Hole
• Shadow cast by a rotating black hole with anisotropic matter