Shadows of 5D Black Holes from String Theory

TL;DR

This paper investigates how the shadows of five-dimensional black holes, influenced by string theory parameters like brane number and rotation, are distorted and how their size and energy emission are affected.

Contribution

It provides a detailed analysis of 5D black hole shadows considering rotation and brane number, revealing how these parameters distort shapes and influence size and emission rates.

Findings

Shadow shapes are significantly distorted by physical parameters.

Shadow size decreases with brane number and rotation.

Energy emission rates are affected by the black hole parameters.

Abstract

We study the shadow behaviors of five dimensional (5D) black holes embedded in type IIB superstring/supergravity inspired spacetimes by considering solutions with and without rotations. Geometrical properties as shapes and sizes are analyzed in terms of the D3-brane number and the rotation parameter. Concretely, we find that the shapes are indeed significantly distorted by such physical parameters and the size of the shadows decreases with the brane or "color" number and the rotation. Then, we investigate geometrical observables and energy emission rate aspects.