J 2024

GRMHD Simulations of Accretion Structures with Different Angular Momentum Profiles

BARDIEV, Dilshodbek, Yuhuan WANG, Martin KOLOŠ and Bobomurat AHMEDOV

Basic information

Original name

GRMHD Simulations of Accretion Structures with Different Angular Momentum Profiles

Authors

BARDIEV, Dilshodbek (860 Uzbekistan, belonging to the institution), Yuhuan WANG, Martin KOLOŠ (203 Czech Republic, belonging to the institution) and Bobomurat AHMEDOV (860 Uzbekistan)

Edition

Astrophysical Journal, GB - Spojené království Velké Británie a, 2024, 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:

Impact factor

Impact factor: 4.900 in 2022

Organization unit

Institute of physics in Opava

UT WoS

001296637500001

Keywords in English

supermassive blak holes;magnetic field strenght;event horizon;disks;transport;jets;instability;energy;GRB

Links

GA23-07043S, research and development project.
Změněno: 4/2/2025 12:27, Mgr. Pavlína Jalůvková

Abstract

V originále

In this article, we explore the dynamics of accretion structures encircling spherically symmetric black holes, comparing three accretion disk models with distinct angular momentum profiles: (i) the geometrically thin Keplerian disk, (ii) the Fishbone-Moncrief torus; and (iii) the Polish Doughnut. Employing general relativistic magnetohydrodynamics simulations with the High Accuracy Relativistic Magnetohydrodynamics code, we investigate these three models, considering the magnetic field's influence on the accretion disk angular momentum redistribution. We show that the magnetic field is a key factor in accretion disk structures, especially in regions with lower mass density. Our investigation verifies the well-established fact that the presence of a magnetic field significantly influences the accretion rate and its temporal variability.