KONOPLYA, Roman. Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature. Physics Letters B. Netherlands, 2021, vol. 823, December, p. "136734-1"-"136734-5", 5 pp. ISSN 0370-2693. Available from: https://dx.doi.org/10.1016/j.physletb.2021.136734.
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Basic information
Original name Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature
Authors KONOPLYA, Roman (804 Ukraine, guarantor, belonging to the institution).
Edition Physics Letters B, Netherlands, 2021, 0370-2693.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher Netherlands
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/21:A0000112
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.1016/j.physletb.2021.136734
UT WoS 000715078300003
Keywords in English NORMAL-MODES;THERMODYNAMICS;COLLAPSE
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 15:43.
Abstract
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.
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