Ergosphere, photon region structure, and the shadow of a rotating charged weyl black hole

Fathi M.; Olivares M.; Villanueva J.R.

Keywords: Black hole shadow; Ergosphere; Weyl gravity

Abstract

In this paper, we explore the photon region and the shadow of the rotating counterpart of a static charged Weyl black hole, which has been previously discussed according to null and time-like geodesics. The rotating black hole shows strong sensitivity to the electric charge and the spin parameter, and its shadow changes from being oblate to being sharp by increasing in the spin parameter. Comparing the calculated vertical angular diameter of the shadow with that of M87*, we found that the latter may possess about 1036 protons as its source of electric charge, if it is a rotating charged Weyl black hole. A complete derivation of the ergosphere and the static limit is also presented.

Más información

Título según SCOPUS: Ergosphere, photon region structure, and the shadow of a rotating charged weyl black hole
Título de la Revista: Galaxies
Volumen: 9
Número: 2
Editorial: MDPI
Fecha de publicación: 2021
Idioma: English
DOI:

10.3390/galaxies9020043

Notas: SCOPUS