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相关论文: Weak deflection angle of black-bounce traversable …

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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 revised. Primarily, the Gibbons and Werner method is studied…

广义相对论与量子宇宙学 · 物理学 2021-11-05 Yashmitha Kumaran , Ali Övgün

This paper is devoted to compute the weak deflection angle for Kalb-Ramond traversable wormhole solution in plasma and dark matter mediums by using the method of Gibbons and Werner. To acquire our results, we evaluate Gaussian optical…

广义相对论与量子宇宙学 · 物理学 2022-11-15 Wajiha Javed , Hafsa Irshad , Reggie C. Pantig , Ali Övgün

In this research, we use the Gibbons-Werner method (Gauss-Bonnet theorem) on the optical geometry of a black hole and wormhole, extending the calculation of the weak gravitational lensing within the Maxwell's fish eye-like profile and dark…

综合物理 · 物理学 2019-05-15 Ali Övgün

In this paper, we calculate the weak deflection angle by Casimir wormhole and its shadow. To do so, we derive the Gaussian optical curvature and use the Gauss-Bonnet theorem. Then we find the deflection angle by Casimir wormhole in weak…

广义相对论与量子宇宙学 · 物理学 2021-01-13 Wajiha Javed , Ali Hamza , Ali Övgün

In this paper the deflection angle of light by a rotating Teo wormhole spacetime is calculated in the weak limit approximation. We mainly focus on the weak deflection angle by revealing the gravitational lensing as a partially global…

广义相对论与量子宇宙学 · 物理学 2018-01-31 Kimet Jusufi , Ali Övgün

In this paper, we study the weak gravitational lensing in the spacetime of rotating regular black hole geometries such as Ayon-Beato-Garc\'ia (ABG), Bardeen, and Hayward black holes. We calculate the deflection angle of light using the…

广义相对论与量子宇宙学 · 物理学 2018-06-12 Kimet Jusufi , Ali Övgün , Joel Saavedra , P. A. González , Yerko Vásquez

In this paper, the weak gravitational lensing phenomenon for a recently proposed rotating regular black hole with an asymptotically Minkowski core characterized by a sub-Planckian curvature was investigated. Using the Gauss-Bonnet Theorem,…

广义相对论与量子宇宙学 · 物理学 2024-11-01 Miles Angelo P. Sodejana

In this paper, we study the deflection of light by a class of phantom black hole and wormhole solutions in the weak limit approximation. More specifically, in the first part of this work, we study the deflection of light by…

广义相对论与量子宇宙学 · 物理学 2019-05-01 Ali Övgün , Galin Gyulchev , Kimet Jusufi

In this article, we demonstrate the weak gravitational lensing in the context of Bocharova-Bronnikov-Melnikov-Bekenstein (BBMB) black hole. To this desire, we derive the deflection angle of light in a plasma medium by BBMB black hole using…

广义相对论与量子宇宙学 · 物理学 2020-07-30 Wajiha Javed , Muhammad Bilal Khadim , Ali Övgün

In this letter, we have investigated the deflection angle of light by wormholes using a new geometrical method known as Gibbons-Werner method (GW). In particular we have calculated the deflection angle of light in the weak limit…

广义相对论与量子宇宙学 · 物理学 2017-08-22 Kimet Jusufi

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 optical geometry of the black hole; and, using the…

广义相对论与量子宇宙学 · 物理学 2019-05-29 A. Övgün

In this paper, we study the gravitational lensing by some black hole classes within the non-linear electrodynamics in weak field limits. First, we calculate an optical geometry of the non-linear electrodynamics black hole then we use the…

广义相对论与量子宇宙学 · 物理学 2022-03-22 H. El Moumni , K. Masmar , Ali 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 support this, the optical geometry of the black hole with…

广义相对论与量子宇宙学 · 物理学 2019-11-19 W. Javed , R. Babar , A. Övgün

In this paper, we study the deflection angle for wormhole-like static aether solution by using Gibbons and Werner technique in non-plasma, plasma, and dark matter mediums. For this purpose, we use optical spacetime geometry to calculate the…

广义相对论与量子宇宙学 · 物理学 2022-12-05 Wajiha Javed , Sibgha Riaz , Reggie C. Pantig , Ali Övgün

In this paper, we study light rays in a Kazakov-Solodukhin black hole. To this end, we use the optical geometry of the Kazakov-Solodukhin black hole within the Gauss-bonnet theorem. We first show the effect of the deformation parameter $a$…

广义相对论与量子宇宙学 · 物理学 2022-01-26 Wajiha Javed , Iqra Hussain , Ali Övgün

In this work, we investigate the weak deflection angle of light from exact black hole within the non-linear electrodynamics. First we calculate the Gaussian optical curvature using the optical spacetime geometry. With the help of modern…

广义相对论与量子宇宙学 · 物理学 2020-05-20 Wajiha Javed , Ali Hamza , Ali Övgün

In this paper, we discuss the weak gravitational lensing in the context of stringy black holes. Initially, we examine the deflection angle of photon by charged stringy black hole. For this desire, we compute the Gaussian optical curvature…

广义相对论与量子宇宙学 · 物理学 2020-04-02 Wajiha Javed , Muhammad Bilal Khadim , Ali Övgün

In this paper, using the recent method proposed by Ono, Ishihara and Asada (OIA) who extend the idea of Gibbons and Werner to the stationary and axisymmetric case, we apply the Gauss-Bonnet theorem to the optical metric of the non-rotating…

广义相对论与量子宇宙学 · 物理学 2018-08-23 Ali Övgün

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 deflection angle by a NAT black hole in the weak limit…

广义相对论与量子宇宙学 · 物理学 2021-01-12 A. Övgün , İ. Sakallı , J. Saavedra

In this work, we study the weak gravitational lensing in the background of Kerr-Newman black hole with quintessential dark energy. Initially, we compute the deflection angle of light by charged black hole with quintessential dark energy by…

广义相对论与量子宇宙学 · 物理学 2020-08-03 W. Javed , J. Abbas , A. Övgün
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