KONOPLYA, Roman and A. ZHIDENKO. Solutions of the Einstein Equations for a Black Hole Surrounded by a Galactic Halo. Astrophysical Journal. GB - Spojené království Velké Británie a, 2022, vol. 933, No 2, p. "166-1"-"166-6", 6 pp. ISSN 0004-637X. Available from: https://dx.doi.org/10.3847/1538-4357/ac76bc.
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Basic information
Original name Solutions of the Einstein Equations for a Black Hole Surrounded by a Galactic Halo
Authors KONOPLYA, Roman (804 Ukraine, belonging to the institution) and A. ZHIDENKO.
Edition Astrophysical Journal, GB - Spojené království Velké Británie a, 2022, 0004-637X.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/47813059:19630/22:A0000184
Organization unit Institute of physics in Opava
Doi http://dx.doi.org/10.3847/1538-4357/ac76bc
UT WoS 000824463000001
Keywords in English galactic halo;supermassive black hole;Einstein equations;cold dark matter;normal modes
Tags FÚ, RIV23
Tags International impact, Reviewed
Links GA19-03950S, research and development project.
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 6/2/2023 12:49.
Abstract
Various profiles of matter distribution in galactic halos (such as the Navarro-Frenk-White, Burkert, Hernquist, Moore, Taylor-Silk models, and others) are considered here as the source term for the Einstein equations. We solve these equations and find exact solutions that represent the metric of a central black hole immersed in a galactic halo. Even though in the general case the solution is numerical, very accurate general analytical metrics, which include all the particular models, are found in the astrophysically relevant regime, when the mass of the galaxy is much smaller than the characteristic scale in the halo.
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