246 citations · 782 across the 9 of their papers we have counts for
17 papers
Deriving Weak Deflection Angle by Black Holes or Wormholes using Gauss-Bonnet Theorem
Yashmitha Kumaran, Ali Övgün
In this review, various researches on finding the bending angle of light deflected by a massive gravitating object which regard the Gauss-Bonnet theorem as the premise have been re…
Weak deflection angle by asymptotically flat black holes in Horndeski theory using Gauss-Bonnet theorem
Wajiha Javed, Jameela Abbas, Yashmitha Kumaran +1
The principal objective of this project is to investigate the gravitational lensing by asymptotically flat black holes in the framework of Horndeski theory in weak field limits. To…
Shadow cast of non-commutative black holes in Rastall gravity
Ali Övgün, İzzet Sakallı, Joel Saavedra +1
We study the shadow and energy emission rate of a spherically symmetric non-commutative black hole in Rastall gravity. Depending on the model parameters, the non-commutative black…
The effect of the Brane-Dicke coupling parameter on weak gravitational lensing by wormholes and naked singularities
Wajiha Javed, Rimsha Babar, Ali Övgün
In this paper, we analyze the deflection angle of light by Brane-Dicke wormhole in the weak field limit approximation to find the effect of the Brane-Dicke coupling parameter on th…
Weak gravitational lensing of regular black holes with cosmic strings using the Gauss-Bonnet theorem
A. Övgün
In this paper, we investigate light bending in the spacetime of regular black holes with cosmic strings in weak field limits. To do so, we apply the Gauss-Bonnet theorem to the opt…
Charged fermions tunneling from stationary axially symmetric black holes with generalized uncertainty principle
Muhammad Rizwan, Muhammad Zubair Ali, Ali Övgün
In this paper, we study the tunneling of charged fermions from the stationary axially symmetric black holes using the generalized uncertainty principle (GUP) via Wentzel, Kramers,…