Detailed Information on Publication Record
2017
Scalar perturbations of nonsingular nonrotating black holes in conformal gravity
TOSHMATOV, Bobir, Cosimo BAMBI, Bobomurat AHMEDOV, Zdeněk STUCHLÍK, Jan SCHEE et. al.Basic information
Original name
Scalar perturbations of nonsingular nonrotating black holes in conformal gravity
Authors
TOSHMATOV, Bobir (860 Uzbekistan, guarantor, belonging to the institution), Cosimo BAMBI (380 Italy), Bobomurat AHMEDOV (860 Uzbekistan), Zdeněk STUCHLÍK (203 Czech Republic, belonging to the institution) and Jan SCHEE (203 Czech Republic, belonging to the institution)
Edition
Physical Review D, 2017, 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:
RIV identification code
RIV/47813059:19240/17:A0000009
Organization unit
Faculty of Philosophy and Science in Opava
UT WoS
000411174700003
Keywords in English
scalar perturbations; black holes; conformal gravity
Tags
International impact, Reviewed
Links
GB14-37086G, research and development project.
Změněno: 5/4/2018 16:00, RNDr. Jan Hladík, Ph.D.
Abstract
V originále
We study scalar and electromagnetic perturbations of a family of nonsingular nonrotating black hole spacetimes that are solutions in a large class of conformally invariant theories of gravity. The effective potential for scalar perturbations depends on the exact form of the scaling factor. Electromagnetic perturbations do not feel the scaling factor, and the corresponding quasinormal mode spectrum is the same as in the Schwarzschild metric. We find that these black hole metrics are stable under scalar and electromagnetic perturbations. Assuming that the quasinormal mode spectrum for scalar perturbations is not too different from that for gravitational perturbations, we can expect that the calculation of the quasinormal mode spectrum and the observation with gravitational wave detectors of quasinormal modes from astrophysical black holes can constrain the scaling factor and test these solutions.