J
2021
Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature
KONOPLYA, Roman
Basic information
Original name
Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature
Edition
Physics Letters B, Netherlands, 2021, 0370-2693
Other information
Type of outcome
Článek v odborném periodiku
Field of Study
10308 Astronomy
Country of publisher
Netherlands
Confidentiality degree
není předmětem státního či obchodního tajemství
RIV identification code
RIV/47813059:19630/21:A0000112
Organization unit
Institute of physics in Opava
Keywords in English
NORMAL-MODES;THERMODYNAMICS;COLLAPSE
Tags
International impact, Reviewed
Links
GA19-03950S, research and development project.
V originále
ecently, Cardoso et al. [1] found an exact solution describing the black hole immersed in a galactic-like distribution of matter. There, the properties of gravitational radiation were studied. Here we continue analysis of properties of this geometry via consideration of the electromagnetic radiation. We calculate quasinormal modes, asymptotic tails and grey-body factors for electromagnetic radiation. In addition, we discuss the Unruh temperature for this spacetime. Estimations made in the regime which is best fitting the galaxies behavior show that influence of the environment on classical and quantum radiation around such black holes must be relatively small.
Displayed: 13/11/2024 02:07