212 citations · 6.6k across the 163 of their papers we have counts for
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Effect of the dilaton field and plasma medium on deflection angle by black holes in Einstein-Maxwell-dilaton-axion theory
W. Javed, R. Babar, A. Övgün
In this paper, we argue that one can calculate the weak deflection angle of light in the background of Einstein-Maxwell-Dilaton-Axion black hole using the Gauss-Bonnet theorem. To…
Tunneling of Massive Vector Particles from Types of BTZ-like Black Holes
Wajiha Javed, Riasat Ali, Rimsha Babar +1
In this paper, we analyze the Hawking radiation phenomenon for types of Banados-Teitelboim-Zanelli-like (BTZ-like) black holes. For this purpose, using the Hamilton-Jacobi method,…
Tunneling of Massive Vector Particles under the Influence of Quantum Gravity
Wajiha Javed, Riasat Ali, Rimsha Babar +1
This paper is devoted to investigate charged vector particles tunneling via horizons of a pair of accelerating rotating charged NUT black hole under the influence of quantum gravit…
Deflection angle of photon from magnetized black hole and effect of nonlinear electrodynamics
Wajiha Javed, Jameela Abbas, Ali Övgün
In this paper, we analyze deflection angle of photon from magnetized black hole within non-linear electrodynamics with parameter . In doing so, we find the corresponding optical…
Effect of the hair on deflection angle by asymptotically flat black holes in Einstein-Maxwell-dilaton theory
Wajiha Javed, Jameela Abbas, Ali Övgün
In this paper, we are interested in a model of exact asymptotically flat charged hairy black holes in the background of dilaton potential. We study the weak gravitational lensing i…
Effect of null aether field on weak deflection angle of black holes
A. Övgün, İ. Sakallı, J. Saavedra
We study the light rays in a static and spherically symmetric gravitational field of null aether theory (NAT). To this end, we employ the Gauss-Bonnet theorem to compute the deflec…
Weak Deflection Angle of Extended Uncertainty Principle Black Holes
Yashmitha Kumaran, Ali Övgün
In this paper, we have discussed the effects of quantum fluctuations spewed by a black hole on its deflection angle. The Gauss-Bonnet theorem (GBT) is exploited with quantum correc…
Quasinormal modes of dS and AdS Black Holes: Feedforward neural network method
Ali Övgün, İzzet Sakallı, Halil Mutuk
In this paper, we show how the quasinormal modes (QNMs) arise from the perturbations of massive scalar fields propagating in the curved background by using the artificial neural ne…
Hawking Radiation via Gauss-Bonnet Theorem
A. Övgün, İ. Sakallı
In this paper, we apply the topological method to the various black holes to derive their Hawking temperature. We show that the this method can easily be employed to compute the Ha…