In this work, we obtain the shadow images of spherically symmetric scalar boson and Proca
stars using analytical fittings of numerical solutions, when illuminated by a geometrically thin …

We investigate strong field gravitational lensing by rotating Simpson-Visser black hole,
which has an additional parameter (0≤ l/2M≤ 1), apart from mass (M) and rotation …

Black bounces are spacetimes that can describe, depending on certain parameters, black
holes or wormholes. In this work, we use a method to obtain the matter content that …

We investigate the null geodesic flow and in particular the light rings (LRs), fundamental
photon orbits (FPOs) and shadows of a black hole (BH) immersed in a strong, uniform …

We investigate the strong gravitational lensing effects of various supermassive compact
objects for the static and spherically symmetric hairy black hole by gravitational decoupling …

In this work, we calculate the deflection angle of light in a spacetime that interpolates
between regular black holes and traversable wormholes, depending on the free parameter …

In this paper we study the gravitational lensing effect for the Schwarzschild solution with
holonomy corrections. We use two types of approximation methods to calculate the …

In the present paper, we study several aspects of gravitational lensing caused by a
topologically charged Monopole/Wormhole, both in the weak field limit and in the strong field …

A hundred years ago, two British expeditions measured the deflection of starlight by the
Sun's gravitational field, confirming the prediction made by Einstein's General Theory of …

Within nonlinear electrodynamics (NED), photons follow null geodesics of an effective
geometry, which is different from the geometry of the spacetime itself. Over the last years …