Shadow of topologically charged rotating braneworld black hole

TL;DR

This paper investigates how the parameters of a topologically charged rotating black hole influence its horizon, photon region, and shadow, revealing that increasing these parameters causes shrinking and distortion effects.

Contribution

It introduces a detailed analysis of the optical properties of a topologically charged rotating black hole, highlighting the effects of tidal and electric charges on observable features.

Findings

Horizon, photon region, and shadow shrink with increasing parameters.

Distortion parameter increases as parameters grow.

Black hole energy emission rate peak decreases with parameter increase.

Abstract

In this paper, we discuss optical properties of the topologically charged rotating black hole. We study the horizon, the photon region, the shadow of the black hole and other observables. The results show that in addition to the black hole spin parameter $a$, the other two parameters, tidal charge $\beta$ and electric charge $q$, are also found to affect the horizon, the photon region and the black hole shadow. In a certain range, with the increase of the three parameters, the horizon distance, shape of the photon region and the black hole shadow will all shrink. Moreover, with the increase of these three parameters, the distortion parameter $\delta_{s}$ gradually increases, while the peak of the black hole energy emission rate decreases.