Shadow casted by a Konoplya-Zhidenko rotating non-Kerr black hole

Abstract

We have investigated the shadow of a Konoplya-Zhidenko rotating non-Kerr black hole with an extra deformation parameter. The spacetime structure arising from the deformed parameter affects sharply the black hole shadow. With the increase of the deformation parameter, the size of the shadow of black hole increase and its shape becomes more rounded for arbitrary rotation parameter. The D-shape shadow of black hole emerges only in the case $a<\frac{2\sqrt{3}}{3}M$ with the proper deformation parameter. Especially, the black hole shadow possesses a cusp shape with small eye lashes in the cases with $a>M$, and the shadow becomes less cuspidal with the increase of the deformation parameter. Our result show that the presence of the deformation parameter yields a series of significant patterns for the shadow casted by a Konoplya-Zhidenko rotating non-Kerr black hole.

12 pages, 6 figures, some typos are corrected and some references added

References in corpus (12)

• The Confrontation between General Relativity and Experiment
• Measurement of the Kerr Spin Parameter by Observation of a Compact Object's Shadow
• A new method for shadow calculations: application to parameterised axisymmetric black holes
• Apparent shape of super-spinning black holes
• Null geodesics and shadow of a rotating black hole in extended Chern-Simons modified gravity
• Shadow of a Kaluza-Klein rotating dilaton black hole
• Photon Rings around Kerr and Kerr-like Black Holes
• Chaotic lensing around boson stars and Kerr black holes with scalar hair
• Fundamental photon orbits: black hole shadows and spacetime instabilities
• What does a binary black hole merger look like?
• Testing the Kerr metric with the iron line and the KRZ parametrization
• Strong gravitational lensing by a Konoplya-Zhidenko rotating non-Kerr compact object

Cited by in corpus (54)

• Black hole shadow in a general rotating spacetime obtained through Newman-Janis algorithm
• Image of Kerr-Melvin black hole with thin accretion disk
• QED Effect on Black Hole Shadow
• Photon Spheres and Spherical Accretion Image of a Hairy Black Hole
• Shadows and rings of the Kehagias-Sfetsos black hole surrounded by thin disk accretion
• Black Hole Shadow in Symmergent Gravity
• Analytical study of gravitational lensing in Kerr-Newman black-bounce spacetime
• Testing Symmergent gravity through the shadow image and weak field photon deflection by a rotating black hole using the M87${}^{\ast }$ and Sgr. A${}^{\ast }$ results
• Influence of Accretion Flow and Magnetic Charge on the Observed Shadows and Rings of the Hayward Black Hole
• Investigating shadow images and rings of the charged Horndeski black hole illuminated by various thin accretions
• From a locality-principle for new physics to image features of regular spinning black holes with disks
• Kerr black holes with synchronised Proca hair: lensing, shadows and EHT constraints
• A review on analytical studies in Gravitational Lensing
• Constraints on charged Symmergent black hole from shadow and lensing
• Rotating black holes without ${\mathbb{Z}}_2$ symmetry and their shadow images
• Kerr Black hole shadows in Melvin magnetic field with stable photon orbits
• Study of circular geodesics and shadow of rotating charged black hole surrounded by perfect fluid dark matter immersed in plasma
• Gravitational Lensing by Black Holes with Multiple Photon Spheres
• Chaotic Shadows of Black Holes: A Short Review
• Geodesic motion around hairy black holes
• Parameterizations of black-hole spacetimes beyond circularity
• Superradiance in Kerr-like black holes
• Eikonal quasinormal modes and photon orbits of deformed Schwarzschild black holes
• Optical appearance of a thin-shell wormhole with a Hayward profile
• Thin accretion disk and shadow of Kerr-Sen black hole in Einstein-Maxwell-dilaton-axion gravity
• The observer-dependent shadow of the Kerr black hole
• Cuspy and fractured black hole shadows in a toy model with axisymmetry
• Generating Rotating Spacetime in Ricci-Based Gravity: Naked Singularity as a Black Hole Mimicker
• On-axis scattering of scalar fields by charged rotating black holes
• On new regular charged black hole solutions: Limiting Curvature Condition, Quasinormal modes and Shadows
• Observational Appearance of a Freely-falling Star in an Asymmetric Thin-shell Wormhole
• Scale-dependent slowly rotating black holes with flat horizon structure
• Exploring light deflection and black hole shadows in Rastall theory with plasma effects
• Geodesic analysis and black hole shadows on a general non--extremal rotating black hole in five--dimensional gauged supergravity
• Distinguishing black holes with and without spontaneous scalarization in Einstein-scalar-Gauss-Bonnet theories via optical features
• Parameter estimation of Kerr-Bertotti-Robinson black holes using their shadows
• Is a photon ring invariably a closed structure?
• Determination of the spin parameter and the inclination angle by the relativistic images in black hole image
• Shadow of Kottler black hole in the presence of plasma for a co-moving observer
• The ring-shaped shadow of rotating naked singularity with a complete photon sphere
• Parameter constraints from shadows of Kerr-Newman-dS black holes with cloud strings and quintessence
• Parametrized black holes: Scattering investigation
• The black hole shadow of quantum Oppenheimer-Snyder-de Sitter spacetime
• Primary Proca Hair and the Double-Peak Optics of Black Holes
• Padé metrics for black hole perturbations and light rings
• The surface geometry and shadow of a Schwarzschild black hole with halo
• Observational signatures of Rotating compact objects in Plasma space-time
• Equatorial orbits and imaging of hairy cubic Galileon black holes
• Shadows of Lorentzian traversable wormholes
• Shadows cast by a class of rotating black bounces with an anisotropic fluid
• Shadow of rotating black holes with consistent thermodynamics
• Exploring black holes with multiple photon spheres by interferometric signatures
• Off-equatorial deflections and gravitational lensing. II. In general stationary and axisymmetric spacetimes
• Analytical approach for calculating shadow of dynamical black hole