J 2022

The relation between accretion rate and jet power in early-type galaxies with thermally unstable hot atmospheres

PLŠEK, Tomáš, Norbert WERNER, Romana GROSSOVÁ, Martin TOPINKA, Aurora SIMIONESCU et. al.

Základní údaje

Originální název

The relation between accretion rate and jet power in early-type galaxies with thermally unstable hot atmospheres

Autoři

PLŠEK, Tomáš (203 Česká republika, garant, domácí), Norbert WERNER (703 Slovensko, domácí), Romana GROSSOVÁ (703 Slovensko, domácí), Martin TOPINKA (203 Česká republika, domácí), Aurora SIMIONESCU a Steven W. ALLEN

Vydání

Monthly Notices of the Royal Astronomical Society, Oxford University Press, 2022, 0035-8711

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.800

Kód RIV

RIV/00216224:14310/22:00127110

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000874073200003

Klíčová slova anglicky

accretion; accretion discs; galaxies: active; galaxies: jets; galaxies: nuclei; radio continuum: galaxies; X-ray: galaxies

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 18. 1. 2023 13:29, Mgr. Marie Šípková, DiS.

Anotace

V originále

We use Chandra X-ray data and Very Large Array radio observations for a sample of 20 nearby, massive, X-ray bright, early-type galaxies to investigate the relation between the Bondi accretion rates and the mechanical jet powers. We find a strong correlation (rho = 0.96(-0.09)(+0.03); BF10 > 100) between the Bondi accretion power, P-Bondi, and the mechanical jet power, P-jet, for a subsample of 14 galaxies, which also host cool H alpha+[N II] line emitting gas and thus likely have thermally unstable atmospheres. The relation between the Bondi accretion power and the mechanical jet power for this subsample is well described by a power-law model log P-Bondi/10(43) erg s(-1) = alpha + beta log P-jet/10(43) erg s(-1), where alpha = 1.10 +/- 0.25 and beta = 1.10 +/- 0.24 with an intrinsic scatter sigma = 0.08(-0.06)(+0.14) dex. The results indicate that in all galaxies with thermally unstable atmospheres the cooling atmospheric gas feeds the central black holes at a similar jet-to-Bondi power ratio. For the full sample of 20 galaxies, the correlation is weaker and in a subset of galaxies with no signs of H alpha+[N II] emission, we see a hint for a systematically lower jet-to-Bondi power ratio. We also investigate the dependence of jet power on individual quantities in the Bondi formula such as the supermassive black hole mass (M-center dot) and the specific entropy of the gas (K) at the Bondi radius. For the subsample of H alpha+[N II] emitting galaxies, we find a very tight correlation of P-jet with M-center dot (rho = 0.91(-0.11)(+0.06); BF10 > 100) and, although poorly constrained, a hint of an anticorrelation for P-jet and K (rho = -0.47(-0.37)(+0.60); BF10 = 1.1).

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
MUNI/I/0003/2020, interní kód MU
Název: MUNI Award in Science and Humanities 3 (Akronym: Space-Based High-Energy Astrophysics)
Investor: Masarykova univerzita, MUNI Award in Science and Humanities 3, MASH - MUNI Award in Science and Humanities