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A review on analytical studies in Gravitational Lensing
In this study, we review some current studies on gravitational lensing for black holes, mainly
in the context of general relativity. We mainly focus on the analytical studies related to …
in the context of general relativity. We mainly focus on the analytical studies related to …
Fundamental physics opportunities with the next-generation event horizon telescope
D Ayzenberg, L Blackburn, R Brito, S Britzen… - arxiv preprint arxiv …, 2023 - arxiv.org
The Event Horizon Telescope (EHT) Collaboration recently published the first images of the
supermassive black holes in the cores of the Messier 87 and Milky Way galaxies. These …
supermassive black holes in the cores of the Messier 87 and Milky Way galaxies. These …
Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A
Horizon-scale images of black holes (BHs) and their shadows have opened an
unprecedented window onto tests of gravity and fundamental physics in the strong-field …
unprecedented window onto tests of gravity and fundamental physics in the strong-field …
Nonlinear electrodynamics effects on the black hole shadow, deflection angle, quasinormal modes and greybody factors
In this paper, we discuss the effects of nonlinear electrodynamics (NED) on non-rotating
black holes, parametrized by the field coupling parameter β and magnetic charge parameter …
black holes, parametrized by the field coupling parameter β and magnetic charge parameter …
Shadow, lensing, quasinormal modes, greybody bounds and neutrino propagation by dyonic ModMax black holes
Motivated by recent work on the Modified Maxwell (ModMax) black holes [Phys Lett B
10.1016/j. physletb. 2020.136011], which are invariant in duality rotations and conformal …
10.1016/j. physletb. 2020.136011], which are invariant in duality rotations and conformal …
Superradiant evolution of the shadow and photon ring of Sgr
Ultralight bosons can affect the dynamics of spinning black holes (BHs) via superradiant
instability, which can lead to a time evolution of the supermassive BH shadow. We study …
instability, which can lead to a time evolution of the supermassive BH shadow. We study …
Tests of loop quantum gravity from the event horizon telescope results of Sgr A
Abstract The Event Horizon Telescope (EHT) collaboration's image of the compact object at
the Galactic center is the first direct evidence of the supermassive black hole (BH) Sgr A …
the Galactic center is the first direct evidence of the supermassive black hole (BH) Sgr A …
Black holes with scalar hair in light of the Event Horizon Telescope
Searching for violations of the no-hair theorem (NHT) is a powerful way to test gravity, and
more generally fundamental physics, particularly with regards to the existence of additional …
more generally fundamental physics, particularly with regards to the existence of additional …
Parameter estimation of hairy Kerr black holes from its shadow and constraints from M87
The recently obtained hairy Kerr black holes, due to additional sources or surrounding fluid,
like dark matter, with conserved energy-momentum tensor, have a deviation α and primary …
like dark matter, with conserved energy-momentum tensor, have a deviation α and primary …
Superradiance evolution of black hole shadows revisited
Black hole (BH) shadows can be used to probe new physics in the form of ultralight particles
via the phenomenon of superradiant instability. By directly affecting the BH mass and spin …
via the phenomenon of superradiant instability. By directly affecting the BH mass and spin …