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Bending of light in novel 4$D$ Gauss-Bonnet-de Sitter black holes by Rindler-Ishak method

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arxiv 2004.02140 v5 pith:IGDU7L4X submitted 2020-04-05 gr-qc hep-th

Mohaddese Heydari-Fard , Malihe Heydari-Fard , H. R. Sepangi This is my paper
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keywords bendingangleblackcouplinggauss-bonnetglavanholeslight
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We study the bending of light in the space-time of black holes in four-dimensional Einstein-Gauss-Bonnet theory of gravity, recently proposed by Glavan and Lin \cite{Glavan}. Using 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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  1. Massive scalar field perturbations of 4D de Sitter Einstein-Gauss-Bonnet black holes

    gr-qc 2025-05 conditional novelty 4.0 of 10

    Massive scalar perturbations of 4D Einstein-Gauss-Bonnet de Sitter black holes are stable and show three quasinormal mode branches, including a non-perturbative de Sitter branch that disappears in the Schwarzschild-de...

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