Detailed Information on Publication Record
2023
Bernstein spectral method for quasinormal modes of a generic black hole spacetime and application to instability of dilaton-de Sitter solution
KONOPLYA, Roman and A. ZHIDENKOBasic information
Original name
Bernstein spectral method for quasinormal modes of a generic black hole spacetime and application to instability of dilaton-de Sitter solution
Authors
KONOPLYA, Roman (804 Ukraine, belonging to the institution) and A. ZHIDENKO
Edition
Physical Review D, 2023, 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:
RIV identification code
RIV/47813059:19630/23:A0000259
Organization unit
Institute of physics in Opava
UT WoS
000933241200005
Keywords in English
Mathematica code; quasinormal frequencies;Bernstein spectral method;black holes
Tags
International impact, Reviewed
Links
GA19-03950S, research and development project.
Změněno: 13/2/2024 14:34, Mgr. Pavlína Jalůvková
Abstract
V originále
We present the improved Mathematica code which computes quasinormal frequencies with the help of the Bernstein spectral method for a general class of black holes, allowing for asymptotically flat, de Sitter or anti-de Sitter asymptotic. The method is especially efficient when searching for purely imaginary and unstable modes, and here it is used for detecting the instability region of a charged scalar field in the background of the charged asymptotically de Sitter dilatonic black hole. We show that the instability has superradiant nature and the dilaton field essentially influences the region of instability.