D
2023
General Relativistic Magnetohydrodynamic Simulations of Accreting Tori: Resolution Study
KARAKONSTANTAKIS, Angelos, Debora LANČOVÁ and Miljenko ČEMELJIĆ
Basic information
Original name
General Relativistic Magnetohydrodynamic Simulations of Accreting Tori: Resolution Study
Authors
KARAKONSTANTAKIS, Angelos,
Debora LANČOVÁ (203 Czech Republic, belonging to the institution) and Miljenko ČEMELJIĆ (191 Croatia, belonging to the institution)
Edition
Opava, Proceedings of RAGtime 23-25: Workshops on black holes and neutron stars, p. 173-185, 13 pp. 2023
Publisher
Slezská univerzita v Opavě, Fyzikální ústav v Opavě
Other information
Type of outcome
Stať ve sborníku
Field of Study
10308 Astronomy
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
Publication form
printed version "print"
RIV identification code
RIV/47813059:19630/23:A0000270
Organization unit
Institute of physics in Opava
Keywords in English
accretion; accretion disks; black hole physics; radiation GRMHD
Tags
International impact, Reviewed
Links
GX21-06825X, research and development project.
V originále
We present two-dimensional general relativistic radiative magnetohydrodynamical simulations of accretion disks around non-rotating stellar-mass black hole. We study the evolution of an equilibrium accreting torus in different grid resolutions to determine an adequate resolution to produce a stable turbulent disk driven by magneto-rotational instability. We evaluate the quality parameter, Qθ, from the ratio of MRI wavelength to the grid zone size and examine the effect of resolution in various quantitative values such as the accretion rate, magnetisation, fluxes of physical quantities and disk scale-height. We also analyse how the resolution affects the formation of plasmoids produced in the magnetic reconnection events.
Displayed: 25/12/2024 05:42