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QED Effects on Kerr-Newman Black Hole Shadows

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arxiv 2403.06886 v3 pith:4QKPJLN6 submitted 2024-03-11 gr-qc astro-ph.HEhep-th

Shaobing Yuan , Changkai Luo , Zezhou Hu , Zhenyu Zhang , Bin Chen This is my paper · ORCID
classification gr-qcastro-ph.HEhep-th
keywords blackeffectsholekerr-newmanshadowsaccountsareabackground
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Incorporating first-order QED effects, we explore the shadows of Kerr-Newman black holes with a magnetic charge through the numerical backward ray-tracing method. Our investigation accounts for both the direct influence of the electromagnetic field on light rays and the distortion of the background spacetime metric due to QED corrections. We notice that the area of the shadow increases with the QED effect, mainly due to the fact that the photons move more slowly in the effective medium and become easier to be trapped by the black hole.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Null orbits and shadows in the Ernst-Wild geometry: insights for black holes immersed in a magnetic field

    gr-qc 2025-05 conditional novelty 6.0 of 10

    For a magnetized Kerr-Newman (Ernst-Wild) black hole, this paper derives perturbative formulas for light ring radii, orbital frequencies, and Lyapunov exponents as functions of magnetic field and spin, and checks the ...

  2. Shadows and accretion disk images of charged rotating black hole in modified gravity theory

    gr-qc 2024-11 conditional novelty 4.0 of 10

    Ray-traced images of the Kerr-Newman-MOG black hole show that the MOG parameter α enlarges and rounds the shadow, and its effect beats that of the electric charge Q.

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