Shadow analysis for rotating black holes in the presence of plasma for an expanding universe

Abstract

We explore the structure of shadow for a Kerr-de Sitter black hole with a non-magnetized, pressureless plasma surrounding it. Specific plasma distributions are considered to separate the Hamilton-Jacobi equation and find the photon regions. An analytic formula describing the boundary curve of the shadow for such a black hole in an expanding universe for an observer at any finite point outside the horizon is derived. We observe deviations which are further explored by calculating the curvature radius at a particular point for such structures in the presence and absence of plasma and calculate the diameter of the shadow.

27 pages, 6 figures, 2 tables, shadow plots and discussion regarding distortion parameter updated, references added, version to appear in Physical Review D

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• Optical properties of Kerr-Newman spacetime in the presence of plasma
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• Photon Ring Autocorrelations
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Cited by in corpus (53)

• Calculating black hole shadows: Review of analytical studies
• Photon Ring and Observational Appearance of a Hairy Black Hole
• Distortions of images of Schwarzschild lensing
• No-Hair Theorem in the Wake of Event Horizon Telescope
• Light rings and shadows of static black holes in effective quantum gravity
• Shadow and quasinormal modes of the Kerr-Newman-Kiselev-Letelier black hole
• Analytical study of gravitational lensing in Kerr-Newman black-bounce spacetime
• Weak gravitational lensing and shadow of a GUP-modified Schwarzschild black hole in the presence of plasma
• A review on analytical studies in Gravitational Lensing
• Quantum effects on the black hole shadow and deflection angle in presence of plasma
• Asymptotically locally flat and AdS higher-dimensional black holes of Einstein-Horndeski-Maxwell gravity in the light of EHT observations: shadow behavior and deflection angle
• Study of circular geodesics and shadow of rotating charged black hole surrounded by perfect fluid dark matter immersed in plasma
• Chaotic Shadows of Black Holes: A Short Review
• Optical appearance of black holes surrounded by a dark matter halo
• Noncommutative Schwarzschild black hole surrounded by quintessence: Thermodynamics, Shadows and Quasinormal modes
• Shadows of Kerr black holes with a Gaussian-distributed plasma in the polar direction
• Images of hairy Reissner-Nordström black hole illuminated by static accretions
• Shadow of slowly rotating Kalb-Ramond black holes
• Gravitational effect of plasma particles on the shadow of Schwarzschild black holes
• Shadow of black hole surrounded by magnetized plasma: Axion-plasmon cloud
• Strong deflection limit analysis of black hole lensing in inhomogeneous plasma
• Shadows of rotating Einstein-Maxwell-dilaton black holes surrounded by a plasma
• Light rings and shadows of static black holes in effective quantum gravity II: A new solution without Cauchy horizons
• Schwarzschild Black Hole Surrounded by Perfect Fluid Dark Matter in the presence of Quintessence Matter Field
• Shadows of magnetically charged rotating black holes surrounded by quintessence
• Twisting shadows: Light rings, lensing and shadows of black holes in swirling universes
• Shadows and accretion disk images of charged rotating black hole in modified gravity theory
• Schwarzschild black hole surrounded by a cloud of strings in the background of perfect fluid dark matter
• Time delay induced by plasma in strong lens systems
• Exploring light deflection and black hole shadows in Rastall theory with plasma effects
• Parameter estimation of Kerr-Bertotti-Robinson black holes using their shadows
• Influence of plasma on the optical appearance of spinning black hole in Kalb-Ramond gravity and its Existence around M87* and Sgr A*
• Shadow of Kottler black hole in the presence of plasma for a co-moving observer
• Black Hole Shadows in Einstein-Bel-Robinson Gravity
• Influence of Quantum Correction on Kerr Black Hole in Effective Loop Quantum Gravity via Shadows and EHT Results
• Gravitational Lensing of Spherically Symmetric Black Holes in Dark Matter Halos
• QED Effects on Kerr-Newman Black Hole Shadows
• Image of Quantum Improved Regular Kerr Black Hole and Parameter Constraints from EHT Observations
• Exploring millicharged dark matter components from the shadows
• Climbing out of the shadows: building the distance ladder with black hole images
• Deflection of light rays in a moving medium around a spherically symmetric gravitating object
• Shadow of Kerr black hole surrounded by a cloud of strings in Rastall gravity and constraints from M87*
• Photon ring autocorrelations from gravitational fluctuations around a black hole
• Gravitational Lensing of Euler-Heisenberg Black Hole Surrounded by Perfect Fluid Dark Matter
• Observational signatures of Rotating compact objects in Plasma space-time
• Shadow of axisymmetric, stationary and asymptotically flat black holes in the presence of plasma
• Shadows of a Non-Commutative Black Hole under the Influence of a Magnetized Plasma
• Deciphering signatures of Kerr-Sen black holes in presence of plasma from the Event Horizon Telescope data
• QED Effects on Kerr Black Hole Shadows immersed in uniform magnetic fields
• Photon region boundary for stationary axisymmetric black holes
• Investigating the interplay of the braneworld gravity and the plasma environment on the black hole shadow
• Light deflection in axially symmetric stationary spacetimes filled with a moving medium
• Remarks on the black hole shadows in Kerr-de Sitter space times