Gravitational lensing under the effect of Weyl and bumblebee gravities: Applications of Gauss–Bonnet theorem

ALI OVGUN , Kimet Jusufi, İzzet Sakallı

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

36 Citas (Scopus)

Resumen

In this paper, we use the Gauss–Bonnet theorem to obtain the deflection angle by the photons coupled to Weyl tensor in a Schwarzschild black hole and Schwarzschild-like black hole in bumblebee gravity in the weak limit approximation. To do so, we first calculate the corresponding optical metrics, and then we find the Gaussian curvature to use in Gauss–Bonnet theorem, which is first done by Gibbons and Werner. Hence, in the leading order terms we show the deflection angle, that is affected by the coupling between the photon and Weyl tensor, and there is a deviation from the deflecting angle as compared with Schwarzschild black hole with Schwarzschild-like black hole in bumblebee gravity. Moreover, we investigate the deflection angle by Einstein–Rosen type wormhole in Weyl gravity and in bumblebee gravity. Interestingly, the deflection angle by Einstein–Rosen type wormhole in bumblebee gravity is found as larger than the deflection angle by Einstein–Rosen type wormhole in Weyl gravity.

Idioma originalInglés
Páginas (desde-hasta)193-203
Número de páginas11
PublicaciónAnnals of Physics
Volumen399
DOI
EstadoPublicada - 1 dic 2018

Huella Profundice en los temas de investigación de 'Gravitational lensing under the effect of Weyl and bumblebee gravities: Applications of Gauss–Bonnet theorem'. En conjunto forman una huella única.

Citar esto