A revisit of rotating black hole shadow with astrometric observables
arXiv:2001.05175 · doi:10.1103/PhysRevD.101.084029
Abstract
The first image of black hole in M87 galaxy taken by Event Horizon Telescope shows that directed observation of supermassive black holes would be a promising way to test general relativity in strong gravity field regime. In order to calculate shadow of rotating black holes with respect to observers located at finite distance, orthonormal tetrads have been introduced in previous works. However, it is noticed that different choice of tetrads does not lead to the same shape of shadow for observers in near regions. In this paper, we alternatively use formula of astrometric observables for calculating the shadow of a general rotating black hole with respect to these observers. For the sake of intuitive, we also consider Kerr-de Sitter black holes as a representative example. In this space-time, size and shape of Kerr-de Sitter black hole shadows are expressed as functions of distance between the black hole and observer. It is forecasted that the distortion of shadow would increase with distance.
26 pages, 15 figures; v2: references added, published in PRD
References in corpus (12)
- First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole
- Measurement of the Kerr Spin Parameter by Observation of a Compact Object's Shadow
- Shadow of a black hole surrounded by dark matter
- Magnetically charged black holes from non-linear electrodynamics and the Event Horizon Telescope
- Photon Rings around Kerr and Kerr-like Black Holes
- Ultra Light Boson Dark Matter and Event Horizon Telescope Observations of M87*
- Silhouette of M87*: A new window to peek into the world of hidden dimensions
- Shadow cast and deflection of light by charged rotating regular black holes
- Hidden symmetries, null geodesics, and photon capture in the Sen black hole
- Concerns regarding the use of black hole shadows as standard rulers
- EHT constraint on the ultralight scalar hair of the M87 supermassive black hole
- Testing the Schwarzschild metric in a strong field region with the Event Horizon Telescope
Cited by in corpus (33)
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- Charged 4D Einstein-Gauss-Bonnet-AdS Black Holes: Shadow, Energy Emission, Deflection Angle and Heat Engine
- Influence of Quantum Correction on the Black Hole Shadows, Photon Rings and Lensing Rings
- QED Effect on Black Hole Shadow
- Shadow analysis for rotating black holes in the presence of plasma for an expanding universe
- Shadows of the accelerating black holes
- Kerr black holes with synchronised Proca hair: lensing, shadows and EHT constraints
- 4D scale-dependent Schwarzschild-AdS/dS black holes: study of shadow and weak deflection angle and greybody bounding
- Influence of an anisotropic matter field on the shadow of a rotating black hole
- Silhouettes of invisible black holes
- Shadows of rotating Hayward-de Sitter black holes with astrometric observables
- Does the shape of the shadow of a black hole depend on motional status of an observer?
- Shadow of a charged black hole with scalar hair
- NUT charges and black hole shadows
- Shadows of rotating black holes in plasma environments with aberration effects
- The observer-dependent shadow of the Kerr black hole
- Effect of gravitational wave on shadow of a Schwarzschild black hole
- Shadows of magnetically charged rotating black holes surrounded by quintessence
- Dynamics of null particles and shadow for general rotating black hole
- Parameter estimation of Kerr-Bertotti-Robinson black holes using their shadows
- Light from Schwarzschild Black Holes in de Sitter expanding universe
- The Existence and Distribution of Photon Spheres Near Spherically Symmetric Black Holes -- A Geometric Analysis
- Emissions of photons near the horizons of Kerr-Sen black holes
- Remarks on the light ring images and the optical appearance of hairy black holes in Einstein-Maxwell-dilaton gravity
- Observational signatures from higher-order images of moving hotspots in accretion disks
- Light from Reissner-Nordstrom-de Sitter black holes
- Photon ring autocorrelations from gravitational fluctuations around a black hole
- Aberration effect on lower-order images of thin accretion disk in the astrometric approach
- Shadow of axisymmetric, stationary and asymptotically flat black holes in the presence of plasma
- Visible shapes of black holes M87* and SgrA*
- Shadow cast by a rotating black hole with anisotropic matter