MAD UFOs: Magnetically Arrested Discs with persistent
Ultra-Fast Outflows

D 2023

MAD UFOs: Magnetically Arrested Discs with persistent Ultra-Fast Outflows

SUKOVÁ, Petra; Michal ZAJAČEK a Vladimír KARAS

Základní údaje

Originální název

MAD UFOs: Magnetically Arrested Discs with persistent Ultra-Fast Outflows

Autoři

SUKOVÁ, Petra; Michal ZAJAČEK a Vladimír KARAS

Vydání

Proceedings of RAGtime 23–25: Workshops on black holes and neutron stars, od s. 109-117, 9 s. 2023

Nakladatel

Silesian University in Opava

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10308 Astronomy

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Forma vydání

tištěná verze "print"

Odkazy

URL

Označené pro přenos do RIV

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-80-7510-577-6

ISSN

EID Scopus

2-s2.0-85184607476

Klíčová slova anglicky

Accretion discs; Active Galactic Nuclei; black holes; MHD simulations; outflows

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 20. 3. 2024 17:29, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

We study an outflow that develops in the MAD state in 3D GRMHD simulations. We show that the outflow can be accelerated to\nrelativistic velocities and persist over the course of our simulation. We compare the properties of the outflow from MAD discs with those launched by orbiting secondary at close orbit. The main difference is that the orbiting body launches a more coherent, quasiperiodic ultrafast outflow at lower velocities (v < 0.5c) while the outflow launched in the MAD state (without the body) has a stochastic behaviour and has anapproximately flat velocity distribution between lower anf higher outflow velocities, 0.2c < v < 0.3c and v > 0.5c.

Návaznosti

GF23-04053L, projekt VaV

Název: Role mraků při využití zpoždění kontinua v aktivních galaxiích k měření rychlosti rozpínání vesmíru

Investor: Grantová agentura ČR, Weather effects in using disk continuum time delays in active galactic nuclei to measure the expansion rate of the Universe / Role mraků při využití zpoždění kontinua v aktivních galaxiích k měření rychlosti rozpínání vesmíru, Partnerská agentura (Polsko)

90140, velká výzkumná infrastruktura

Název: e-INFRA CZ

Citovat

SUKOVÁ, Petra; Michal ZAJAČEK a Vladimír KARAS. MAD UFOs: Magnetically Arrested Discs with persistent Ultra-Fast Outflows. In Z. Stuchlík, G. Török, V. Karas, D. Lančová. Proceedings of RAGtime 23–25: Workshops on black holes and neutron stars. Silesian University in Opava, 2023, s. 109-117. ISBN 978-80-7510-577-6.

@inproceedings{2386257,
   author = {Suková, Petra and Zajaček, Michal and Karas, Vladimír},
   booktitle = {Proceedings of RAGtime 23–25: Workshops on black holes and neutron stars},
   editor = {Z. Stuchlík, G. Török, V. Karas, D. Lančová},
   keywords = {Accretion discs; Active Galactic Nuclei; black holes; MHD simulations; outflows},
   howpublished = {tištěná verze "print"},
   language = {eng},
   isbn = {978-80-7510-577-6},
   pages = {109-117},
   publisher = {Silesian University in Opava},
   title = {MAD UFOs: Magnetically Arrested Discs with persistent Ultra-Fast Outflows},
   url = {https://proceedings.physics.cz/wp-content/uploads/2024/01/RAGtime25_online_final.pdf},
   year = {2023}
}

TY  - CONF
ID  - 2386257
AU  - Suková, Petra - Zajaček, Michal - Karas, Vladimír
PY  - 2023
TI  - MAD UFOs: Magnetically Arrested Discs with persistent Ultra-Fast Outflows
PB  - Silesian University in Opava
SN  - 9788075105776
KW  - Accretion discs
KW  - Active Galactic Nuclei
KW  - black holes
KW  - MHD simulations
KW  - outflows
UR  - https://proceedings.physics.cz/wp-content/uploads/2024/01/RAGtime25_online_final.pdf
N2  - We study an outflow that develops in the MAD state in 3D GRMHD simulations. We show that the outflow can be accelerated to\nrelativistic velocities and persist over the course of our simulation. We compare the properties of the outflow from MAD discs with those launched by orbiting secondary at close orbit. The main difference is that the orbiting body launches a more coherent, quasiperiodic ultrafast outflow at lower velocities (v < 0.5c) while the outflow launched in the MAD state (without the body) has a stochastic behaviour and has anapproximately flat velocity distribution between lower anf higher outflow velocities, 0.2c < v < 0.3c and v > 0.5c.
ER  -

SUKOVÁ, Petra; Michal ZAJAČEK a Vladimír KARAS. MAD UFOs: Magnetically Arrested Discs with persistent Ultra-Fast Outflows. In Z. Stuchlík, G. Török, V. Karas, D. Lančová. \textit{Proceedings of RAGtime 23–25: Workshops on black holes and neutron stars}. Silesian University in Opava, 2023, s.~109-117. ISBN~978-80-7510-577-6.

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