Shadows near supermassive black holes: from a theoretical concept to GR test
arXiv:2308.01301 · doi:10.1142/S0218271823400047
Abstract
General relativity (GR) passed many astronomical tests but in majority of them GR predictions have been tested in a weak gravitational field approximation. Around 50 years ago a shadow has been introduced by J. Bardeen as a purely theoretical concept but due to an enormous progress in observational and computational facilities this theoretical prediction has been confirmed and the most solid argument for an existence of supermassive black holes in Sgr A* and M87* has been obtained.
arXiv comment12 pages, 1 figure, presented as a talk at The 6th International Conference on Particle Physics and Astrophysics (ICPPA-2022), accepted in IJMPD
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- Analyzing the Influence of Geometrical Deformation on Photon Sphere and Shadow Radius: A New Analytical Approach -- Spherically Symmetric Spacetimes
- Multimodal signatures of asymptotic (A)dS Kalb-Ramond black holes: Constraints through the shadow, weak deflection angle, and topological photon spheres
- Testing black holes with cosmological constant in Einstein-bumblebee gravity through the black hole shadow using EHT data and deflection angle
- Charged Black Holes in the Kalb-Ramond Background with Lorentz Violation: Null Geodesics and Optical Appearance of a Thin Accretion Disk
- Shedding Light on Gravity: Black Hole Shadows and Lensing Signatures in Lorentz Gauge Theory
- Phenomenology of Schwarzschild-like Black Holes with a Generalized Compton Wavelength