QED effects on Kerr black hole shadows immersed in uniform magnetic fields

Zhong, Zhen; Hu, Zezhou; Yan, Haopeng; Guo, Minyong; Chen, Bin

doi:10.1103/physrevd.104.104028

Cited by 37 publications

(14 citation statements)

References 44 publications

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“…It is convenient to define a new dual vector q μ ≡ G μν p ν . Photons have two Killing vectors corresponding to the conserved energy E = −q t and angular momentum L = q φ [51,52]. By substituting the effective metric (10) into the Hamiltonian constraint G μν q μ q ν = 0, we obtain…”

Section: Bi Black Holes With Magnetic Monopolesmentioning

confidence: 99%

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Effects of Born–Infeld electrodynamics on black hole shadows

et al. 2022

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In this work, we study the shadow of Born–Infeld (BI) black holes with magnetic monopoles and Schwarzschild black holes immersed in the BI uniform magnetic field. Illuminated by a celestial sphere, black hole images are obtained by using the backward ray-tracing method. For magnetically charged BI black holes, we find that the shadow radius increases with the increase of nonlinear electromagnetics effects. For Schwarzschild black holes immersed in the BI uniform magnetic field, photons tend to move towards the axis of symmetric, resulting in stretched shadows along the equatorial plane.

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Section: Bi Black Holes With Magnetic Monopolesmentioning

confidence: 99%

“…With the astronomical observations of strong magnetic fields around black holes, influences of magnetic fields on shadow images have been studied [49]. Moreover, effects of nonlinear electrodynamics on black hole shadows were investigated [50][51][52][53].…”

Section: Introductionmentioning

confidence: 99%

Effects of Born–Infeld electrodynamics on black hole shadows

et al. 2022

View full text Add to dashboard Cite

show abstract

“…It is convenient to define a new dual vector q µ ≡ G µν p ν . Photons have two Killing vectors corresponding to the conserved energy E = −q t and angular momentum L = q φ [51,52]. By substituting the effective metric (10) into the Hamiltonian constraint G µν q µ q ν = 0, we obtain…”

Section: Bi Black Holes With Magnetic Monopolesmentioning

confidence: 99%

Effects of Born-Infeld electrodynamics on black hole shadows

He,

Tao,

Wang

et al. 2022

Preprint

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In this work, we study the shadow of Born-Infeld (BI) black holes with magnetic monopoles and Schwarzschild black holes immersed in the BI uniform magnetic field. Illuminated by a celestial sphere, black hole images are obtained by using the backward ray-tracing method. For magnetically charged BI black holes, we find that the shadow radius increases with the increase of nonlinear electromagnetics effects. For Schwarzschild black holes immersed in the BI uniform magnetic field, photons tend to move towards the axis of symmetric, resulting in stretched shadows along the equatorial plane.

show abstract

“…In classical physics, the trajectories of photons are unaffected by magnetic fields, however, if the effect of quantum electrodynamics is included, the dispersion relationship of photons changes and photons no longer travel along geodesics, see examples in[32,33].…”

mentioning

confidence: 99%

Polarized image of synchrotron radiations of hotspots in Schwarzschilld-Melvin black hole spacetime

Zhu¹,

Guo²

2022

Preprint

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We revisit the innermost stable circular orbits (ISCOs) of charged particles and study the polarized images of synchrotron radiations emitted from such orbiting hotspots on the equatorial plane in Schwarzchild-Melvin black hole spacetime. We obtain a constraint on the magnetic field to retain ISCOs for charged particles. In particular, we identify a critical value for the strength of the magnetic field B c that the circular orbits can have positive and negative angular momentums above B c while only one branch survive below B c . Furthermore, we investigate and discuss the primary and secondary images of circularly orbiting charged hotspots carrying the information of polarization directions observed by distant observers.

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QED effects on Kerr black hole shadows immersed in uniform magnetic fields

Cited by 37 publications

References 44 publications

Effects of Born–Infeld electrodynamics on black hole shadows

Effects of Born–Infeld electrodynamics on black hole shadows

Effects of Born-Infeld electrodynamics on black hole shadows

Polarized image of synchrotron radiations of hotspots in Schwarzschilld-Melvin black hole spacetime

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