BRONNIKOV, Kirill A. and Roman KONOPLYA. Echoes in brane worlds: Ringing at a black hole-wormhole transition. Physical Review D. 2020, vol. 101, No 6, p. "064004-1"-"064004-9", 9 pp. ISSN 2470-0010. Available from: https://dx.doi.org/10.1103/PhysRevD.101.064004.
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Basic information
Original name Echoes in brane worlds: Ringing at a black hole-wormhole transition
Authors BRONNIKOV, Kirill A. and Roman KONOPLYA (804 Ukraine, belonging to the institution).
Edition Physical Review D, 2020, 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/47813059:19630/20:A0000033
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1103/PhysRevD.101.064004
UT WoS 000517965700006
Keywords in English NORMAL-MODES
Tags FÚ, FÚ2020, GA19-03950S, RIV21
Tags International impact, Reviewed
Links GA19-03950S, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 20/4/2021 00:10.
Abstract
Echoes are known as modifications of the usual quasinormal ringing of a black hole at late times because of the deviation of space-time from the initial black hole geometry in a small region near its event horizon. We consider a class of brane-world model solutions of the Shiromizu-Maeda-Sasaki equations, which describe both black holes and wormholes and interpolate between them via a continuous parameter. In this way the brane-world scenario provides a natural model for wormholes mimicking the black hole behavior if the continuous parameter is chosen near the threshold with a black hole solution. We show that in the vicinity of this threshold interpolating between black holes and wormholes, quasinormal ringing of the wormholes at the initial stage is indistinguishable from that of the black holes with nearby values of the above parameter, but at later times the signal is modified by intensive echoes. We notice that the black hole mimickers that are wormholes near the threshold have the largest quality factor and are therefore the best oscillators among the considered examples.
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