Probing black holes via quasinormal modes in a dark energy-induced dark matter

TL;DR

This paper investigates how dark matter around supermassive black holes affects quasinormal modes using a novel gravitational model where dark energy gives gravitons mass, revealing potential for dark matter detection via gravitational waves.

Contribution

It introduces a new gravitational model linking dark energy and dark matter, analyzing quasinormal modes to distinguish black holes with dark matter from standard models.

Findings

Quasinormal mode frequencies decrease with parameter increases.

Significant differences in oscillation modes compared to Schwarzschild black holes.

Model validates the potential for gravitational wave detection of dark matter.

Abstract

This study delves into the existence of dark matter around supermassive black holes in galactic cores using a novel gravitational model. By analyzing gravitational waves emitted during the ringdown phase of black holes under different field perturbations, we explore the potential for detecting dark matter. The model hypothesizes that the dark matter distribution around black hole is driven by a mechanism where dark energy endows gravitons with mass, thereby forming a new spacetime structure. Results reveal that as relevant parameters increase, the quasinormal modes (QNMs) exhibit a gradual reduction in real parts, with negative imaginary parts whose absolute values also decrease. Moreover, compared to gravitational wave signals from Schwarzschild black hole without dark matter, this system demonstrates significant differences in oscillation modes and frequencies. This achievement not only validates the self-consistency of the new gravitational model but also lays a theoretical foundation for subsequent gravitational wave detection within dark matter. Simultaneously, it provides new theoretical support for understanding the mechanism of dark energy in large-scale cosmic structures and broadens the research perspective on the relationships between black hole physics, dark matter, and dark energy.