Effects of quintessence on scattering and absorption sections of black holes

TL;DR

This paper investigates how quintessence influences scattering and absorption properties of Schwarzschild, Reissner-Nordström, and Bardeen black holes, providing new insights into their horizon structure and critical parameters.

Contribution

It introduces a detailed analysis of quintessence effects on black hole scattering and absorption, including critical charge values and horizon conditions for three black hole types.

Findings

Quintessence affects scattering cross-sections and absorption rates.

Critical charge and normalization factors are derived for each black hole type.

Horizon structures and extremal conditions are characterized with quintessence parameters.

Abstract

Basing on the ideas used by Kiselev, we study three black holes surrounded by quintessence and the effects of quintessence on the classical and semiclassical scattering cross-sections. In contrast, the absorption section is studied with the sinc approximation in the eikonal limit. For Schwarzschild, Reissner-Nordstr\"{o}m and Bardeen black holes surrounded by quintessence, the values critical of charges and the normalization factor are obtained. We also described the horizons and the extremal condition of the black holes surrounded by quintessence. By setting for the quintessence state parameter in two the particular cases w=-2/3 and w=-1/2.