Bending of light in novel 4D Gauss-Bonnet-de Sitter black holes by the Rindler-Ishak method
Mohaddese Heydari-FardDepartment of Physics, Shahid Beheshti University - G. C., Evin, Tehran 19839, IranMalihe Heydari-FardDepartment of Physics, Shahid Beheshti University - G. C., Evin, Tehran 19839, IranHamid Reza SepangiDepartment of Physics, Shahid Beheshti University - G. C., Evin, Tehran 19839, Iran
2021en
ABI
Abstract
Abstract We study the bending of light in the space-time of black holes in the four-dimensional Einstein-Gauss-Bonnet theory of gravity, recently proposed by Glavan and Lin in Phys. Rev. Lett. , 124 (2020) 081301. Using the Rindler-Ishak method, the effect of Gauss-Bonnet coupling on the bending angle is studied. We show that a positive Gauss-Bonnet coupling gives a negative contribution to the Schwarzschild-de Sitter deflection angle, as one would expect.
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