J 2022

Nonoscillatory gravitational quasinormal modes and telling tails for Schwarzschild-de Sitter black holes

KONOPLYA, Roman and A. ZHIDENKO

Basic information

Original name

Nonoscillatory gravitational quasinormal modes and telling tails for Schwarzschild-de Sitter black holes

Authors

KONOPLYA, Roman (804 Ukraine, belonging to the institution) and A. ZHIDENKO

Edition

Physical Review D, 2022, 2470-0010

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

RIV identification code

RIV/47813059:19630/22:A0000192

Organization unit

Institute of physics in Opava

DOI

http://dx.doi.org/10.1103/PhysRevD.106.124004

UT WoS

000909780200003

Keywords in English

quasinormal spectrum;gravitational perturbations;Schwarzschild-de Sitter black holes;oscillatory modes

Tags

, RIV23

Tags

International impact, Reviewed

Links

GA19-03950S, research and development project.
Změněno: 7/2/2023 08:55, Mgr. Pavlína Jalůvková

Abstract

V originále

We show that the quasinormal spectrum of gravitational perturbations of Schwarzschild-de Sitter black holes contains a new branch of purely imaginary modes. These modes are not algebraically special and we showed that the sum of them form the well-known in the literature exponential asymptotic tail. When the ratio of the event horizon radius to the cosmological horizon vanishes, these quasinormal modes approach modes of empty de Sitter spacetime. Thus, the spectrum consists of the two branches: Schwarzschild branch deformed by the cosmological constant and de Sitter branch deformed by the black hole mass. While the de Sitter branch contains purely imaginary modes only, the oscillatory modes (with nonzero real part) of the Schwarzschild branch can also become purely imaginary for some values of the cosmological constant, for which they approach the algebraically special mode.
Displayed: 24/12/2024 04:16