Quasinormal modes for the Vaidya metric
Elcio Abdalla, Cecilia B. M. H. Chirenti, and Alberto Saa
TL;DR
This paper investigates scalar and electromagnetic perturbations in the Vaidya metric to analyze quasinormal modes in time-dependent black hole spacetimes, revealing non-stationary behaviors and insights into wave scattering during mass accretion.
Contribution
It introduces a novel approach using double-null coordinates to study quasinormal modes in non-stationary spacetimes, refining previous results and identifying new non-stationary behaviors.
Findings
Identification of non-stationary quasinormal mode behavior
Refinement of previous results on perturbations
Insights into wave scattering during black hole mass accretion
Abstract
We consider here scalar and electromagnetic perturbations for the Vaidya metric in double-null coordinates. Such an approach allows one to go a step further in the analysis of quasinormal modes for time-dependent spacetimes. Some recent results are refined, and a new non-stationary behavior corresponding to some sort of inertia for quasinormal modes is identified. Our conclusions can enlighten some aspects of the wave scattering by black holes undergoing some mass accretion processes.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.