2024RNAAS...8..105P

Query : 2024RNAAS...8..105P

2024RNAAS...8..105P - Research Notes of the AAS, 8, 105 (2024/April-0)

The Host Galaxy of a Dormant, Overmassive Black Hole at z = 6.7 may be Restarting Star Formation.

PACUCCI F., LOEB A. and JUODZBALIS I.

Abstract (from CDS):

JWST is discovering a large population of z > 4 supermassive black holes (SMBHs) that are overmassive with respect to the stellar content of their hosts. A previous study developed a physical model to interpret this overmassive population as the result of quasar feedback acting on a compact host galaxy. In this Note, we apply this model to JADES GN 1146115, a dormant SMBH at z = 6.7 whose mass is ∼40% of the host's mass in stars and accreting at ∼2% of the Eddington limit. The host has been forming stars at the low rate of ∼1 M⊙ yr–1 for the past ∼100 Myr. Our model suggests that this galactic system is on the verge of a resurgence of global star formation activity. This transition comes after a period of domination by the effect of its overmassive black hole, whose duration is comparable to typical quasar lifetimes.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Active galaxies - Supermassive black holes - Galaxy evolution - Star formation - Galaxy quenching

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 JADES-GN+189.09144+62.22811 EmG 12 36 21.9481 +62 13 41.173           ~ 9 0

Query : 2024RNAAS...8..105P

Basic data :
JADES-GN+189.09144+62.22811 -- Emission-line galaxy
Other object types: otypes_help 		EmG (2023ApJS), G (2024RNAAS), NIR (JADES)
ICRS coord. (ep=J2000) : 		12 36 21.9481 +62 13 41.173 (Near-IR) [ ] C 2023ApJS..269...16R
FK4 coord. (ep=B1950 eq=1950) : 		12 34 07.7395 +62 30 11.282 [ ]
Gal coord. (ep=J2000) : 		125.9778307 +54.8109224 [ ]
Radial velocity / Redshift / cz : 		V(km/s) 289784 [~] / z(emission) 6.675075 [~] / cz 2001137.14 [~]
   (NIR) C 2023ApJS..269...16R
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Identifiers (4) :
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JADES-GN+189.09144+62.22811 JADES-GN NC 1001830 JADES-GN+189.09145+62.22810 JADES-GN NS 38509

References (9 between 1850 and 2026) (Total 9)
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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