ACCRETION DISK LUMINOSITY FOR BLACK HOLES SURROUNDED BY DARK MATTER WITH ANISOTROPIC PRESSURE
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Date
2021
Authors
Boshkayev, Kuantay
Giamb`o, Roberto
Konysbayev, Talgar
Kurmanov, Ergali
Luongo, Orlando
Malafarina, Daniele
Quevedo, Hernando
Journal Title
Journal ISSN
Volume Title
Publisher
The Astrophysical Journal
Abstract
We investigate the luminosity of the accretion disk for a static black hole surrounded by dark
matter with anisotropic pressure. We calculate all basic orbital parameters of test particles in the
accretion disk, such as angular velocity, angular momentum, energy and radius of the innermost
circular stable orbit as functions of the dark matter density, radial pressure and anisotropic param eter, which establishes the relationship between the radial and tangential pressures. We show that
the presence of dark matter with anisotropic pressure makes a noticeable difference in the geometry
around a Schwarzschild black hole, affecting the radiative flux, differential luminosity and spectral
luminosity of the accretion disk.
Description
Keywords
Type of access: Open Access, accretion disk, differential and spectral luminosity
Citation
Kurmanov, E., Boshkayev, K., Giambò, R., Konysbayev, T., Luongo, O., Malafarina, D., & Quevedo, H. (2022). Accretion Disk Luminosity for Black Holes Surrounded by Dark Matter with Anisotropic Pressure. The Astrophysical Journal, 925(2), 210. https://doi.org/10.3847/1538-4357/ac41d4