J 2021

Conformal Weyl gravity via two stages of quasinormal ringing and late-time behavior

KONOPLYA, Roman

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

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:

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, , GA19-03950S, RIV22

Tags

International impact, Reviewed

Links

GA19-03950S, research and development project.
Změněno: 8/2/2022 14:26, Mgr. Pavlína Jalůvková

Abstract

V originále

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.
Displayed: 24/12/2024 03:36