The Wind Dynamics of Super-Eddington Sources in FRADO

J 2022

The Wind Dynamics of Super-Eddington Sources in FRADO

NADDAF, Mohammad-Hassan; Bozena CZERNY a Michal ZAJAČEK

Základní údaje

Originální název

The Wind Dynamics of Super-Eddington Sources in FRADO

Autoři

NADDAF, Mohammad-Hassan; Bozena CZERNY a Michal ZAJAČEK

Vydání

Dynamics, MDPI, 2022, 2673-8716

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL, URL

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/22:00129254

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

super-Eddington accretion disk; active galaxies; broad-line region; dust-driving mechanism; radiation pressure; FRADO model

Štítky

14312040, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 16. 10. 2024 11:20, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

We perform non-hydrodynamical 2.5D simulations to study the dynamics of material above accretion disk based on the disk radiation pressure acting on dust. We assume a super-accreting underlying disk with the accretion rate of 10 times the Eddington rate with central black hole mass ranging from 107 up to 109M⊙. Such high accretion rates are characteristic for extreme sources. We show that for high accretors the radiatively dust-driving mechanism based on the FRADO model always leads to a massive outflow from the disk surface, and the failed wind develops only at larger radii. The outflow rate strongly depends on the black hole mass, and an optically thick energy-driven solution can exceed the accretion rate for masses larger than 108M⊙ but momentum-driven outflow does not exceed the accretion rate even for super-Eddington accretion, therefore not violating the adopted stationarity of the disk. However, even in this case the outflow from the disk implies a strong mechanical feedback.

Návaznosti

GX21-13491X, projekt VaV

Název: Zkoumání žhavého vesmíru a porozumění kosmické zpětné vazbě (Akronym: EHU)

Investor: Grantová agentura ČR, Exploring the Hot Universe and Understanding Comic Feedback

Citovat

NADDAF, Mohammad-Hassan; Bozena CZERNY a Michal ZAJAČEK. The Wind Dynamics of Super-Eddington Sources in FRADO. Dynamics. MDPI, 2022, roč. 2, č. 3, s. 295-305. ISSN 2673-8716. Dostupné z: https://doi.org/10.3390/dynamics2030015.

@article{2239829,
   author = {Naddaf, MohammadandHassan and Czerny, Bozena and Zajaček, Michal},
   article_number = {3},
   doi = {https://doi.org/10.3390/dynamics2030015},
   keywords = {super-Eddington accretion disk; active galaxies; broad-line region; dust-driving mechanism; radiation pressure; FRADO model},
   language = {eng},
   issn = {2673-8716},
   journal = {Dynamics},
   title = {The Wind Dynamics of Super-Eddington Sources in FRADO},
   url = {https://arxiv.org/pdf/2209.09304.pdf},
   volume = {2},
   year = {2022}
}

TY  - JOUR
ID  - 2239829
AU  - Naddaf, Mohammad-Hassan - Czerny, Bozena - Zajaček, Michal
PY  - 2022
TI  - The Wind Dynamics of Super-Eddington Sources in FRADO
JF  - Dynamics
VL  - 2
IS  - 3
SP  - 295-305
EP  - 295-305
PB  - MDPI
SN  - 26738716
KW  - super-Eddington accretion disk
KW  - active galaxies
KW  - broad-line region
KW  - dust-driving mechanism
KW  - radiation pressure
KW  - FRADO model
UR  - https://arxiv.org/pdf/2209.09304.pdf
N2  - We perform non-hydrodynamical 2.5D simulations to study the dynamics of material above accretion disk based on the disk radiation pressure acting on dust. We assume a super-accreting underlying disk with the accretion rate of 10 times the Eddington rate with central black hole mass ranging from 107 up to 109M⊙. Such high accretion rates are characteristic for extreme sources. We show that for high accretors the radiatively dust-driving mechanism based on the FRADO model always leads to a massive outflow from the disk surface, and the failed wind develops only at larger radii. The outflow rate strongly depends on the black hole mass, and an optically thick energy-driven solution can exceed the accretion rate for masses larger than 108M⊙ but momentum-driven outflow does not exceed the accretion rate even for super-Eddington accretion, therefore not violating the adopted stationarity of the disk. However, even in this case the outflow from the disk implies a strong mechanical feedback.
ER  -

NADDAF, Mohammad-Hassan; Bozena CZERNY a Michal ZAJAČEK. The Wind Dynamics of Super-Eddington Sources in FRADO. \textit{Dynamics}. MDPI, 2022, roč.~2, č.~3, s.~295-305. ISSN~2673-8716. Dostupné z: https://doi.org/10.3390/dynamics2030015.

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