QED Effects on Kerr Black Hole Shadows immersed in uniform magnetic fields
arXiv:2108.06140 · doi:10.1103/PhysRevD.104.104028
Abstract
In this work, taking the QED effect into account, we investigate the shadows of the Kerr black holes immersed in uniform magnetic fields through the numerical backward ray-tracing method. We introduce a dimensionless parameter to characterize the strength of magnetic fields and studied the influence of magnetic fields on the Kerr black hole shadows for various spins of the black holes and inclination angles of the observers. In particular, we find that the photon "hairs" appear near the left edge of the shadow in the presence of magnetic fields. The photon hairs may be served as a signature of the magnetic fields. We notice that the photon hairs become more evident when the strength of magnetic fields or the spin of the black hole becomes larger. In addition, we study the deformation of the shadows by bringing in quantitative parameters that can describe the position and shape of the shadow edge.
matched version in PRD
References in corpus (26)
- First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
- First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon
- Black Hole Shadows, Photon Rings, and Lensing Rings
- Calculating black hole shadows: Review of analytical studies
- First M87 Event Horizon Telescope Results. VII. Polarization of the Ring
- Photon Rings around Kerr and Kerr-like Black Holes
- Chaotic lensing around boson stars and Kerr black holes with scalar hair
- Gravitational decoupling for axially symmetric systems and rotating black holes
- QED Effect on Black Hole Shadow
- Photon Spheres and Spherical Accretion Image of a Hairy Black Hole
- The shadows and observational appearance of a noncommutative black hole surrounded by various profiles of accretions
- Quasinormal modes of black holes immersed in a strong magnetic field
- Shadows and lensing of black holes immersed in strong magnetic fields
- Influence of a plasma on the observational signature of a high-spin Kerr black hole
- Revisiting the shadow of braneworld black holes
- Relating Black Hole Shadow to Quasinormal Modes for Rotating Black Holes
- Kerr Black hole shadows in Melvin magnetic field with stable photon orbits
- Correspondence of eikonal quasinormal modes and unstable fundamental photon orbits for Kerr-Newman black hole
- Particle motion around magnetized black holes: Preston-Poisson space-time
- Observational signature of a near-extremal Kerr-Sen black hole in the heterotic string theory
- Magnetized black hole as a gravitational lens
- Photon Emission Near Myers-Perry Black Holes in the Large Dimension Limit
- Observational Signature and Additional Photon Rings of Asymmetric Thin-shell Wormhole
- Axion-like dark matter clouds around rotating black holes
- Observability of Zero-angular-momentum Sources Near Kerr Black Holes
- Can shadows connect black hole microstructures?