TOSHMATOV, Bobir, Khasan MAVLYANOV, Bahromjon ABDULAZIZOV, Ahror MAMADJANOV and Farruh ATAMUROTOV. Quasinormal modes of acoustic black hole. Annals Of Physics. 2023, vol. 458, November 2023, p. "169450-1"-"169450-18", 18 pp. ISSN 0003-4916. Available from: https://dx.doi.org/10.1016/j.aop.2023.169450.
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Basic information
Original name Quasinormal modes of acoustic black hole
Authors TOSHMATOV, Bobir (203 Czech Republic, belonging to the institution), Khasan MAVLYANOV, Bahromjon ABDULAZIZOV, Ahror MAMADJANOV and Farruh ATAMUROTOV.
Edition Annals Of Physics, 2023, 0003-4916.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/23:A0000320
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1016/j.aop.2023.169450
UT WoS 001080052700001
Keywords in English Acoutics;scalar;electromagnetic;perturbation;frequency
Tags RIV24, UF
Tags International impact, Reviewed
Links EF18_053/0017871, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 16/2/2024 10:31.
Abstract
In this paper the electromagnetic and massive scalar perturbations of the Schwarzschild acoustic black hole are studied and their characteristic oscillation frequencies, so-called quasinormal modes are calculated. It has been shown that the odd-and evenparity electromagnetic perturbations are isospectral. We have shown that small value of a tuning parameter (xi < 2) of the acoustic black hole decreases the frequency and damping rate of perturbations. A quasi-resonance modes of the massive scalar perturbations that corresponds to possible maximum value of mass of the scalar field to generate the quasinormal modes have been determined. The mass of the scalar field makes the perturbations longer-lived. The time-domain analysis of the perturbations have shown that the acoustic black hole is stable against electromagnetic and scalar perturbations.
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