We review the topic of 4D Einstein–Gauss–Bonnet (4DEGB) gravity, which has been the
subject of considerable interest over the past two years. Our review begins with a general …

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 …

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 …

We model the supermassive dark object M 8 7* as a Schwarzschild lens and study the
variations in tangential, radial, and total (the product of tangential and radial) magnifications …

Recently there has been a surge of interest in regularizing, a D→ 4 limit of, the Einstein-
Gauss-Bonnet (EGB) gravity, and the resulting regularized 4D EGB gravity has nontrivial …

Shadows and gravitational weak lensing by the Schwarzschild black hole in the string cloud
background with quintessential field - IOPscience Skip to content IOP Science home …

Motivated by (i) more and more interest in strong gravitational lensing by supermassive
black holes due to the achievement of EHT observations,(ii) the ongoing popular topic on …

In this study, the gravitational deflection angle of photons in the weak field limit (or the weak
deflection angle) and shadow cast by the electrically charged and spherically symmetric …

We recently hypothesized that a distortion parameter exists such that its signed sum for all
images of singular gravitational lensing of a source vanishes identically [KS Virbhadra …

In this paper, we have studied the particle dynamics, gravitational lensing and energy
processes around the black hole (BH) in Kalb–Ramond (KR) gravity. The motion of particles …