Graviton emission from simply rotating Kerr-de Sitter black holes: Transverse traceless tensor graviton modes

TL;DR

This paper investigates graviton emission and Hawking radiation from higher-dimensional Kerr-de Sitter black holes, providing preliminary results on greybody factors and emission rates for tensor modes in dimensions seven and above.

Contribution

It offers the first analysis of tensor graviton modes and Hawking radiation in higher-dimensional Kerr-dS black holes, addressing normalization subtleties.

Findings

Preliminary greybody factors for tensor modes in dimensions ≥7.

Initial estimates of Hawking radiation emission rates.

Discussion of temperature normalization issues in Kerr-dS black holes.

Abstract

In this article we present results for tensor graviton modes (in seven dimensions and greater, $n\geq 3$) for greybody factors of Kerr-dS black holes and for Hawking radiation from simply rotating (n+4)-dimensional Kerr black holes. Although there is some subtlety with defining the Hawking temperature of a Kerr-dS black hole, we present some preliminary results for emissions assuming the standard Hawking normalization and a Bousso-Hawking-like normalization.