Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature

Recently, 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 radiatio...

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Autor principal:	R.A. Konoplya
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/08b11ff561e846cfa4c65cb1de2c3af2
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spelling	oai:doaj.org-article:08b11ff561e846cfa4c65cb1de2c3af22021-12-04T04:32:31ZBlack holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature0370-269310.1016/j.physletb.2021.136734https://doaj.org/article/08b11ff561e846cfa4c65cb1de2c3af22021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0370269321006742https://doaj.org/toc/0370-2693Recently, 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.R.A. KonoplyaElsevierarticlePhysicsQC1-999ENPhysics Letters B, Vol 823, Iss , Pp 136734- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 R.A. Konoplya Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature
description	Recently, 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.
format	article
author	R.A. Konoplya
author_facet	R.A. Konoplya
author_sort	R.A. Konoplya
title	Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature
title_short	Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature
title_full	Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature
title_fullStr	Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature
title_full_unstemmed	Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature
title_sort	black holes in galactic centers: quasinormal ringing, grey-body factors and unruh temperature
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/08b11ff561e846cfa4c65cb1de2c3af2
work_keys_str_mv	AT rakonoplya blackholesingalacticcentersquasinormalringinggreybodyfactorsandunruhtemperature
_version_	1718373011292160000

Black holes in galactic centers: Quasinormal ringing, grey-body factors and Unruh temperature

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