Eur. Phys. J. C (2020) 80: 51
https://doi.org/10.1140/epjc/s10052-020-7623-5

Regular Article - Theoretical Physics

Classical tests on a charged Weyl black hole: bending of light, Shapiro delay and Sagnac effect

¹ Instituto de Física y Astronomía, Universidad de Valparaíso, Avenida Gran Bretaña 1111, Valparaíso, Chile
² Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Avenida Ejército Libertador 441, Casilla 298-V, Santiago, Chile

^* e-mail: mohsen.fathi@postgrado.uv.cl

Received: 26 October 2019
Accepted: 3 January 2020
Published online: 23 January 2020

Abstract

In this paper, we apply the classical test of general relativity on a charged Weyl black hole, the exterior geometry of which is defined by altering the spherically symmetric solutions of the Weyl conformal theory of gravity. The tests are basically founded on scrutinizing the angular geodesics of light rays propagating in the gravitating system caused by the black hole. In this investigation, we bring detailed discussions about the bending of light, together with two other relativistic effects, known as the Shapiro and the Sagnac effects. We show that the results are in good conformity with the general relativistic effects, in addition to giving long-distance corrections caused by the cosmological nature of the background geometry under study.