280 citations · 2.4k across the 47 of their papers we have counts for
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hep-th2019★ 82 cited
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…
gr-qc2019★ 159 cited
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…
gr-qc2019★ 141 cited
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…