Light deflection and Gauss–Bonnet theorem: definition of total deflection angle and its applications
Sign Up to like & getrecommendations! Published in 2017 at "General Relativity and Gravitation"
DOI: 10.1007/s10714-018-2368-2
Abstract: In this paper, we re-examine the light deflection in the Schwarzschild and the Schwarzschild–de Sitter spacetime. First, supposing a static and spherically symmetric spacetime, we propose the definition of the total deflection angle $$\alpha $$α… read more here.
Keywords: deflection; total deflection; geometry; mathscr ... See more keywords
The optical geometry definition of the total deflection angle of a light ray in curved spacetime
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2021/08/028
Abstract: Assuming a static and spherically symmetric spacetime, we propose a novel concept of the total deflection angle of a light ray in terms of the optical geometry which is the Riemannian geometry experienced by the… read more here.
Keywords: total deflection; geometry; light ray; deflection angle ... See more keywords