2023ApJ...955...67K

Query : 2023ApJ...955...67K

2023ApJ...955...67K - Astrophys. J., 955, 67 (2023/September-3)

Effects of Heat Conduction on Blocking off the Super-Eddington Growth of Black Holes at High Redshift.

KAWANAKA N. and KOHRI K.

Abstract (from CDS):

We investigate the effect of conductive heating of the gas surrounding a geometrically thick accretion disk on the growth of a black hole (BH) at high redshift. If a BH is accreting the surrounding gas at a super-Eddington rate, the X-ray radiation from the vicinity of the BH would be highly anisotropic due to the self-shielding of a geometrically thick accretion disk, and then the radiative feedback on the surrounding medium would be suppressed in the equatorial region, within which super-Eddington accretion can continue. However, if this region is sufficiently heated via thermal conduction from the adjacent region that is not shielded and heated by the X-ray irradiation, the surrounding gas becomes isotropically hot, and the Bondi accretion rate would be suppressed and become sub-Eddington. We evaluate the condition under which such isotropic heating is realized and derive new criteria required for super-Eddington accretion.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Supermassive black holes - Quasars - Bondi accretion - Accretion

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 : 2023ApJ...955...67K

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)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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