Massive scalar field perturbations of black holes immersed in Chaplygin-like dark fluid
Massive scalar field perturbations of black holes immersed in Chaplygin-like dark fluid
Authors
Becar, Ramon
Gonzalez, P. A.
Papantonopoulos, Eleftherios
Vasquez, Yerko
Gonzalez, P. A.
Papantonopoulos, Eleftherios
Vasquez, Yerko
Profesor GuĆa
Authors
Date
Datos de publicaciĆ³n:
10.1088/1475-7516/2024/06/061
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,Vol.,2024
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,Vol.,2024
Tipo de recurso
Article
Keywords
Materia geogrƔfica
Collections
Abstract
We consider massive scalar field perturbations in the background of black holes immersed in Chaplygin-like dark fluid (CDF), and we analyze the photon sphere modes, the de Sitter modes as well as the near extremal modes and discuss their dominance, by using the pseudospectral Chebyshev method and the third order Wentzel-Kramers-Brillouin approximation. We also discuss the impact of the parameter representing the intensity of the CDF on the families of quasinormal modes. Mainly, we find that the propagation of a massive scalar field is stable in this background, and it is characterized by quasinormal frequencies with a smaller oscillation frequency and a longer decay time compared to the propagation of the same massive scalar field within the Schwarzschild-de Sitter background.