Work

Hair imprints of the gravitational decoupling and hairy black hole spectroscopy

Year: 2025

Type: article

Abstract: Hairy black holes by gravitational decoupling (GD) are probed to derive the gravitational waveform produced by perturbation theory applied to these compact objects. Using the Regge–Wheeler and Zerilli equations governing the metric perturbations and applying a higher-order WKB method, the quasinormal modes (QNMs) are computed and discussed. Compared to the QNMs produced in the ringdown phase of Reissner–Nordström black hole solutions, it yields a clear physical signature of primary hair imprinting the hairy GD black hole gravitational waveforms.

Source: Classical and Quantum Gravity

DOI: 10.1088/1361-6382/adfda5

Authors: V F Guimarães, R T Cavalcanti, R da Rocha

Institutions: Universidade Federal do ABC, Universidade do Estado do Rio de Janeiro, Universidade Estadual Paulista (Unesp)

Language: English

Topic: Pulsars and Gravitational Waves Research

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico

Awards: Cherenkov Telescope Array: construction and first discoveries, G5817992240