2020/05/15 by Wajiha Javed, Ali Hamza, Ali Övgün
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Classical mechanics #Deflection (physics) #Deflection angle #Mechanics #Nonlinear system #Optics #Physics #Pulsars and Gravitational Waves Research #Quantum electrodynamics #Quantum mechanics #gr-qc
paper · pdf · doi:10.1103/physrevd.101.103521
published as Phys. Rev. D 101, 103521 (2020) · 12 pages. Accepted for publication in Physical Review D (https://journals.aps.org/prd/abstract/10.1103/PhysRevD.101.103521)
openalex created_date 2020/01/10 · arxiv created 2020/05/15 · openalex publication_date 2020/05/15 · arxiv updated 2020/05/20 · openalex updated_date 2026/08/05
In this work we investigate the weak deflection angle of light from an exact black hole within nonlinear electrodynamics. First, we calculate the Gaussian optical curvature using the optical spacetime geometry. With the help of modern geometrical methods popularized by Gibbons and Werner, we examine the deflection angle of light from an exact black hole. To do this, we determine the optical Gaussian curvature and apply the Gauss-Bonnet theorem to the optical metric and calculate the leading terms of the deflection angle in the weak-limit approximation. Furthermore, we also study the plasma medium's effect on weak gravitational lensing by an exact black hole. Hence, we determine the effect of nonlinear electrodynamics on the deflection angle in a weak gravitational field.