J 2022

Solutions of the Einstein Equations for a Black Hole Surrounded by a Galactic Halo

KONOPLYA, Roman and A. ZHIDENKO

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

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/47813059:19630/22:A0000184

Organization unit

Institute of physics in Opava

UT WoS

000824463000001

Keywords in English

galactic halo;supermassive black hole;Einstein equations;cold dark matter;normal modes

Tags

Tags

International impact, Reviewed

Links

GA19-03950S, research and development project.
Změněno: 6/2/2023 12:49, Mgr. Pavlína Jalůvková

Abstract

V originále

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.