KONOPLYA, Roman. Quasinormal modes in higher-derivative gravity: Testing the black hole parametrization and sensitivity of overtones. Physical Review D. 2023, vol. 107, No 6, p. "064039-1"-"064039-8", 8 pp. ISSN 2470-0010. Available from: https://dx.doi.org/10.1103/PhysRevD.107.064039.
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Basic information
Original name Quasinormal modes in higher-derivative gravity: Testing the black hole parametrization and sensitivity of overtones
Authors KONOPLYA, Roman (804 Ukraine, guarantor, belonging to the institution).
Edition Physical Review D, 2023, 2470-0010.
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:A0000258
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1103/PhysRevD.107.064039
UT WoS 000994420600007
Keywords in English gravitonial-waves;quasinormal modes; black holes
Tags RIV24, UF
Tags International impact, Reviewed
Links GA19-03950S, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 12/2/2024 14:17.
Abstract
The fundamental quasinormal modes of black holes in higher-derivative gravity given by the EinsteinWeyl action are known to be moderately corrected by the Weyl term. Here we will show that the first several overtones are highly sensitive to even a relatively small Weyl correction, which might be important when representing the earlier stage of the black hole ringdown. In addition, we have solved the problem related to the analytical parametrized approximation of the numerical black hole solution in the Einstein-Weyl theory: In some range of parameters, the approximation for the metric developed up to the third order leads to the unusual highly nonmonotonic behavior of the frequencies. We have shown that this problem can be solved via the extension of the parametrization of the metric to higher orders until reaching the regime when the frequencies do not change with further increasing of the order.
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