Kerr Black hole shadows in Melvin magnetic field with stable photon orbits

Abstract

We have studied the spacetime of a Kerr black hole immersed in Melvin magnetic field, and found not only unstable light rings could exist, but also stable light rings could exist. Both the prograde and retrograde unstable light rings radiuses increase with the magnetic field parameter $B$, but it is the opposite for stable light rings. The existence of unstable, stable light rings depend on both the rotation parameter $a$ and the magnetic field parameter $B$. For a certain $a$, there are both the prograde and retroprade unstable (stable) light rings when $B$ is less than a critical value $B_c$ of retrograde light ring. In this case, the shadows of Melvin-Kerr black hole have two gray regions on both sides of the middle main shadow, which correspond to the prograde and retrograde stable photon orbits. The photons in stable orbits are always moving around Melvin-Kerr black hole, they can't enter the black hole or escape to infinity. As $B$ continues to increase, there is only the prograde unstable (stable) light ring. In this case, the gray region only emerges in the life of the main shadow, which corresponds to the prograde stable photon orbits. The absence of the retrograde unstable (stable) light rings makes the Melvin-Kerr black hole shadow an half-panoramic (equatorial) shadow. When $B$ is bigger than $B_C$ of prograde light ring, neither prograde nor retroprade unstable (stable) light rings exist. In this case, the shadow of Melvin-Kerr black hole has no gray region for stable photon orbits, and becomes a panoramic (equatorial) shadow. In addition, there also exist some self-similar fractal structures in the shadow of Melvin-Kerr black hole arising from the chaotic motion of photon.

arXiv comment16 pages, 9 figures

References in corpus (58)

• First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
• First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole
• First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole
• First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring
• Viewing the Shadow of the Black Hole at the Galactic Center
• First M87 Event Horizon Telescope Results. II. Array and Instrumentation
• First M87 Event Horizon Telescope Results. III. Data Processing and Calibration
• First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon
• Shadows and strong gravitational lensing: a brief review
• Shadows of Kerr black holes with scalar hair
• Measurement of the Kerr Spin Parameter by Observation of a Compact Object's Shadow
• A strong magnetic field around the supermassive black hole at the centre of the Galaxy
• Photon Regions and Shadows of Kerr-Newman-NUT Black Holes with a Cosmological Constant
• Influence of a plasma on the shadow of a spherically symmetric black hole
• Shadow of rotating regular black holes
• Shadow of a black hole surrounded by dark matter
• A new method for shadow calculations: application to parameterised axisymmetric black holes
• Apparent shape of super-spinning black holes
• Shadow of a rotating braneworld black hole
• Observing the shadow of Einstein-Maxwell-Dilaton-Axion black hole
• Shapes and Positions of Black Hole Shadows in Accretion Disks and Spin Parameters of Black Holes
• Null geodesics and shadow of a rotating black hole in extended Chern-Simons modified gravity
• Black hole shadow in an asymptotically-flat, stationary, and axisymmetric spacetime: The Kerr-Newman and rotating regular black holes
• Shadow of a Kaluza-Klein rotating dilaton black hole
• Optical properties of black hole in the presence of plasma: shadow
• Photon Rings around Kerr and Kerr-like Black Holes
• A coordinate-independent characterization of a black hole shadow
• The Shadow of a Rotating Traversable Wormhole
• Shadow and Deflection Angle of Rotating Black Holes in Perfect Fluid Dark Matter with a Cosmological Constant
• Shadows and photon spheres with spherical accretions in the four-dimensional Gauss-Bonnet black hole
• Black hole shadow in an expanding universe with a cosmological constant
• Chaotic lensing around boson stars and Kerr black holes with scalar hair
• Influence of quintessence dark energy on the shadow of black hole
• Shadows of Kerr black holes with and without scalar hair
• Fundamental photon orbits: black hole shadows and spacetime instabilities
• Measuring the Kerr spin parameter of regular black holes from their shadow
• Shadow of a Spinning Black Hole in an Expanding Universe
• Curvature radius and Kerr black hole shadow
• Shadows of Multi-Black Holes: Analytic Exploration
• Shadow casted by a Konoplya-Zhidenko rotating non-Kerr black hole
• Energetics and optical properties of $6$-dimensional rotating black hole in pure Gauss-Bonnet gravity
• What does a binary black hole merger look like?
• Binary black hole shadows, chaotic scattering and the Cantor set
• Shadow cast by rotating braneworld black holes with a cosmological constant
• Astrophysical imaging of Kerr black holes with scalar hair
• Shadows and lensing of black holes immersed in strong magnetic fields
• Shadows of Bonnor black dihole by chaotic lensing
• Chaotic shadow of a non-Kerr rotating compact object with quadrupole mass moment
• Intrinsic curvature and topology of shadows in Kerr spacetime
• Evolution of black hole shadow in the presence of ultralight bosons
• Shadow of a rotating squashed Kaluza-Klein black hole
• Polarization effects in Kerr black hole shadow due to the coupling between photon and bumblebee field
• Double shadow of a regular phantom black hole as photons couple to Weyl tensor
• Possible imprints of cosmic strings in the shadows of galactic black holes
• Shadow of a Schwarzschild black hole surrounded by a Bach-Weyl ring
• Effect of gravitational wave on shadow of a Schwarzschild black hole
• S0-2 star, G1- and G2-objects and flaring activity of the Milky Way's Galactic Center black hole in 2019
• Shadow of a disformal Kerr black hole in quadratic DHOST theories

Cited by in corpus (24)

• Image of Kerr-Melvin black hole with thin accretion disk
• Shadow and weak gravitational lensing of a rotating regular black hole in a non-minimally coupled Einstein-Yang-Mills theory in the presence of plasma
• Investigating shadow images and rings of the charged Horndeski black hole illuminated by various thin accretions
• The feature of shadow images and observed luminosity of the Bardeen black hole surrounded by different accretions
• Photon regions, shadow observables and constraints from M87* of a charged rotating black hole
• Kerr black holes with synchronised Proca hair: lensing, shadows and EHT constraints
• Light rings and long-lived modes in quasi-black hole spacetimes
• Chaotic Shadows of Black Holes: A Short Review
• Kerr-MOG-(A)dS black hole and its shadow in scalar-tensor-vector gravity theory
• Shadow of slowly rotating Kalb-Ramond black holes
• Light propagation in a plasma on an axially symmetric and stationary spacetime: Separability of the Hamilton-Jacobi equation and shadow
• New class of rotating charged black holes with nonaligned electromagnetic field
• Exploring light deflection and black hole shadows in Rastall theory with plasma effects
• Energy extraction via magnetic reconnection in magnetized black holes
• Determination of the spin parameter and the inclination angle by the relativistic images in black hole image
• Explicit symplectic integrators with adaptive time steps in curved spacetimes
• The ring-shaped shadow of rotating naked singularity with a complete photon sphere
• Effects of Two Quantum Correction Parameters on Chaotic Dynamics of Particles Near Renormalized Group Improved Schwarzschild Black Holes
• QED Effects on Kerr-Newman Black Hole Shadows
• The surface geometry and shadow of a Schwarzschild black hole with halo
• Third type of spacetime with the coexistence of integrability and non-integrability
• Shadows cast by a class of rotating black bounces with an anisotropic fluid
• QED Effects on Kerr Black Hole Shadows immersed in uniform magnetic fields
• Topological charge and black hole photon spheres in massive gravity