# Hawking Radiation of Five-dimensional Charged Black Holes with Scalar Fields

## TL;DR

This paper studies Hawking radiation from five-dimensional charged black holes with scalar fields, revealing how charge and scalar coupling influence the radiation's sparsity through semi-analytic greybody factor calculations.

## Contribution

It provides a semi-analytic analysis of greybody factors for Hawking radiation in higher-dimensional charged black holes with scalar fields, highlighting the effects of charge and conformal coupling.

## Key findings

- Hawking radiation cascade is extremely sparse.
- Charge increases the sparsity of Hawking radiation.
- Scalar field coupling reduces the sparsity.

## Abstract

We investigate the Hawking radiation cascade from the five-dimensional charged black hole with a scalar field coupled to higher-order Euler densities in a conformally invariant manner. We give the semi-analytic calculation of greybody factors for the Hawking radiation. Our analysis shows that the Hawking radiation cascade from this five-dimensional black hole is extremely sparse. The charge enhances the sparsity of the Hawking radiation, while the conformally coupled scalar field reduces this sparsity.