2021MNRAS.505.5846I

Query : 2021MNRAS.505.5846I

2021MNRAS.505.5846I - Mon. Not. R. Astron. Soc., 505, 5846-5852 (2021/August-3)

Supercritical dusty BH growth in the early Universe.

ISHIBASHI W.

Abstract (from CDS):

Supermassive black holes (with M_ BH_ ∼109M☉) are observed in the first Gyr of the Universe, and their host galaxies are found to contain unexpectedly large amounts of dust and metals. In light of the two empirical facts, we explore the possibility of supercritical accretion and early black hole growth occurring in dusty environments. We generalize the concept of photon trapping to the case of dusty gas and analyse the physical conditions leading to 'dust photon trapping'. Considering the parameter space dependence, we obtain that the dust photon trapping regime can be more easily realized for larger black hole masses, higher ambient gas densities, and lower gas temperatures. The trapping of photons within the accretion flow implies obscured active galactic nuclei, while it may allow a rapid black hole mass build-up at early times. We discuss the potential role of such dust photon trapping in the supercritical growth of massive black holes in the early Universe.

Abstract Copyright: © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): black hole physics - galaxies: active - galaxies: evolution

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 QSO J0313-1806 QSO 03 13 43.84 -18 06 36.4           ~ 42 0

Query : 2021MNRAS.505.5846I

Basic data :
QSO J0313-1806 -- Quasar
Other object types: otypes_help 		QSO (2021ApJ,QSO,...)
ICRS coord. (ep=J2000) : 		03 13 43.84 -18 06 36.4 (Near-IR) [ ] C 2021ApJ...923..262Y
FK4 coord. (ep=B1950 eq=1950) : 		03 11 26.46 -18 17 45.3 [ ]
Gal coord. (ep=J2000) : 		205.11942 -56.07524 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 291871 [390] / z(spectroscopic) 7.6423 [0.0013] / cz 2291104 [390]
   (NIR) D 2021ApJ...923..262Y
Fluxes (2) :
J 20.92 [0.13] D 2021ApJ...907L...1W
K 19.96 [0.16] D 2021ApJ...907L...1W
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Identifiers (2) :
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QSO J0313-1806 [YWF2021] J031343.84-180636.4

References (42 between 1850 and 2026) (Total 42)
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