Year: 2021
Type: preprint
Abstract: In classical general relativity astrophysical black holes can be affected by the superradiant instability when gravity is minimally coupled to a light bosonic field. The majority of phenomenological studies have focused on the idealized case in which the black hole is initially surrounded by a single mode superradiant seed. By studying the evolution of a scalar field with multiple modes initial data in a quasiadiabatic approximation, we show that the dynamics is more involved and depend on the initial seed energy and the amplitude ratio between the modes. We also present preliminary results of the dynamical evolution of a massive scalar field around a Newtonian and a fully relativistic, black hole binary.
Source: arXiv (Cornell University)
Author: Ficarra, Giuseppe
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W3161343058