KONOPLYA, Roman. Conformal Weyl gravity via two stages of quasinormal ringing and late-time behavior. Physical Review D. College Park (USA): American Physical Society, 2021, vol. 103, No 4, p. "044033-1"-"044033-6", 6 pp. ISSN 2470-0010. Available from: https://dx.doi.org/10.1103/PhysRevD.103.044033.
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Basic information
Original name Conformal Weyl gravity via two stages of quasinormal ringing and late-time behavior
Authors KONOPLYA, Roman (804 Ukraine, guarantor, belonging to the institution).
Edition Physical Review D, College Park (USA), American Physical Society, 2021, 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/47813059:19630/21:A0000111
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1103/PhysRevD.103.044033
UT WoS 000619137300001
Keywords in English RELATIVISTIC GRAVITATIONAL COLLAPSE;HOLE NORMAL-MODES;BLACK-HOLE;NONSPHERICAL PERTURBATIONS;WAVE-PROPAGATION;TESTS
Tags 2022, FÚ, GA19-03950S, RIV22
Tags International impact, Reviewed
Links GA19-03950S, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 8/2/2022 14:26.
Abstract
Black hole (BH) solution in the conformal Weyl gravity is a generalization of the Schwarzschild spacetime which includes two additional constants appearing when integrating the third order differential equations for gravitational field. One constant looks like the effective cosmological constant providing the de Sitter asymptotic of the solution. The other constant allows one to describe flat rotation of galaxies without introducing of the dark matter. Here we show that the effective "dark matter" term in the metric function drastically changes the asymptotic behavior of the evolution of the wave function of a scalar field: after the Schwarzschild-like ringing phase, the ringing at another, non-Schwarzschildian, longer-lived frequency takes place before the beginning of the exponential asymptotic tail. Thus the evolution of the scalar field consists of the three qualitatively different stages: the Schwarzschild-like ringing phase, the effective dark matter ringing phase and the de Sitter phase characterized by exponential tails. The late-time behavior of the electromagnetic field is qualitatively different as well: the exponential tails appear even in the absence of the effective de Sitter term.
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