Some Observable Physical Properties of the Higher Dimensional dS/AdS Black Holes in Einstein-Bumblebee Gravity Theory

TL;DR

This paper investigates the observable physical properties of higher-dimensional dS/AdS black holes in Einstein-bumblebee gravity, focusing on greybody factors, quasinormal modes, and shadows, highlighting effects of Lorentz symmetry breaking and dimensionality.

Contribution

It provides a semi-analytical study of perturbations and observable features of higher-dimensional bumblebee black holes, incorporating Lorentz symmetry breaking effects.

Findings

LSB influences greybody factors and quasinormal modes

Dimensionality affects black hole shadow size and characteristics

Results are presented through detailed tables and graphical illustrations

Abstract

We study the greybody factors, quasinormal modes, and shadow of the higher dimensional de-Sitter (dS)/ anti de-Sitter (AdS) black hole spacetimes derived from the Einstein-bumblebee gravity theory within the Lorentz symmetry breaking (LSB) framework. We specifically apply the semi-analytical WKB method and the time domain approach to study the scalar and Dirac perturbations of the black hole. In-depth researches are done on the effects of the LSB and dimensionality on the bosonic/fermionic greybody factors, quasinormal modes, and shadow of the higher dimensional bumblebee black hole. The results obtained are discussed, tabulated, and illustrated graphically.