General Relativistic Magnetohydrodynamic Simulations of
Accreting Tori: Resolution Study

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

Language

English

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"

References:

URL

RIV identification code

RIV/47813059:19630/23:A0000270

Organization unit

Institute of physics in Opava

ISBN

978-80-7510-577-6

ISSN

Keywords in English

accretion; accretion disks; black hole physics; radiation GRMHD

Links

GX21-06825X, research and development project.

Změněno: 26/2/2024 12:25, Mgr. Pavlína Jalůvková

Abstract

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.

Citovat

KARAKONSTANTAKIS, Angelos, Debora LANČOVÁ and Miljenko ČEMELJIĆ. General Relativistic Magnetohydrodynamic Simulations of Accreting Tori: Resolution Study. In Proceedings of RAGtime 23-25: Workshops on black holes and neutron stars. Opava: Slezská univerzita v Opavě, Fyzikální ústav v Opavě, 2023, p. 173-185. ISBN 978-80-7510-577-6.

@inproceedings{77830,
   author = {Karakonstantakis, Angelos and Lančová, Debora and Čemeljić, Miljenko},
   address = {Opava},
   booktitle = {Proceedings of RAGtime 23-25: Workshops on black holes and neutron stars},
   keywords = {accretion; accretion disks; black hole physics; radiation GRMHD},
   howpublished = {tištěná verze "print"},
   language = {eng},
   location = {Opava},
   isbn = {978-80-7510-577-6},
   pages = {173-185},
   publisher = {Slezská univerzita v Opavě, Fyzikální ústav v Opavě},
   title = {General Relativistic Magnetohydrodynamic Simulations of Accreting Tori: Resolution Study},
   url = {https://proceedings.physics.cz/wp-content/uploads/2023/12/23_25_18_kar.pdf},
   year = {2023}
}

TY  - JOUR
ID  - 77830
AU  - Karakonstantakis, Angelos - Lančová, Debora - Čemeljić, Miljenko
PY  - 2023
TI  - General Relativistic Magnetohydrodynamic Simulations of Accreting Tori: Resolution Study
PB  - Slezská univerzita v Opavě, Fyzikální ústav v Opavě
CY  - Opava
SN  - 9788075105776
KW  - accretion
KW  - accretion disks
KW  - black hole physics
KW  - radiation GRMHD
UR  - https://proceedings.physics.cz/wp-content/uploads/2023/12/23_25_18_kar.pdf
N2  - 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.
ER  -

KARAKONSTANTAKIS, Angelos, Debora LANČOVÁ and Miljenko ČEMELJI$\backslash$'C. General Relativistic Magnetohydrodynamic Simulations of Accreting Tori: Resolution Study. In \textit{Proceedings of RAGtime 23-25: Workshops on black holes and neutron stars}. Opava: Slezská univerzita v Opavě, Fyzikální ústav v Opavě, 2023, p.~173-185. ISBN~978-80-7510-577-6.

Detailed Information on Publication Record