J/ApJ/900/125 Radio properties of Swift/BAT AGNs (Rusinek+, 2020)
On the diversity of jet production efficiency in Swift/BAT AGNs.
Rusinek K., Sikora M., Koziel-Wierzbowska D., Gupta M.
<Astrophys. J., 900, 125 (2020)>
=2020ApJ...900..125R 2020ApJ...900..125R
ADC_Keywords: Active gal. nuclei; Radio sources; Redshifts; Morphology
Keywords: Radio active galactic nuclei ; Radio jets ; Relativistic jets ;
Non-thermal radiation sources ; AGN host galaxies ;
Galaxy accretion disks
Abstract:
We address the very large diversity of jet production efficiency in
active galactic nuclei (AGNs) by using data on low-redshift AGNs
selected from the Swift/BAT catalog and having black hole (BH) masses
larger than 108.5M☉. Most of these AGNs accrete at
intermediate rates and have bolometric luminosities dominated by
mid-IR radiation. Our sample contains 14% radio-loud (RL), 6%
radio-intermediate, and 80% radio-quiet (RQ) AGNs. All RL objects are
found to have extended radio structures, and most of them have
classical FR II morphology. Converting their radio loudness to jet
production efficiency, we find that the median of this efficiency is
on the order of (εd/0.1)%, where
εd=Lbol/(dM/dt)c2 is the radiation efficiency of the
accretion disk. Without knowing the contribution of jets to the radio
emission in RQ AGNs, we are only able to estimate their efficiencies
using upper limits. Their median is found to be
0.002(εd/0.1)%. Our results suggest that some threshold
conditions must be satisfied to allow the production of strong,
relativistic jets in RL AGNs. We discuss several possible scenarios
and argue that the production of collimated, relativistic jets must
involve the Blandford-Znajek mechanism and can be activated only in
those AGNs whose lifetime is longer than the time required to enter
the magnetically arrested disk (MAD). Presuming that MAD is required
to collimate relativistic jets, we expect that the weak
nonrelativistic jets observed in some RQ AGNs are produced by
accretion disks rather than by rotating BHs.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 117 314 Swift/BAT sample of 314 AGNs used in this study
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See also:
B/hst : HST Archived Exposures Catalog (STScI, 2007)
B/eso : ESO Science Archive Catalog (ESO, 1991-2022)
VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)
VIII/81 : Sydney University Molonglo Sky Survey (SUMSS V2.1) (Mauch+ 2008)
VIII/92 : The FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015)
II/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)
J/A+AS/132/31 : Kinematical models for double radio sources (Nilsson 1998)
J/ApJS/164/307 : NICMOS observations of 3CR radio sources (Madrid+, 2006)
J/ApJ/658/815 : Radio loudness of active galactic nuclei (Sikora+, 2007)
J/AJ/137/42 : Matched SDSS and FIRST Sample (Rafter+, 2009)
J/MNRAS/415/1013 : FR II radio galaxies in SDSS (Koziel-Wierzbowska+, 2011)
J/ApJ/765/62 : SDSS-DR7 opt. spectra analysis of radio gal. (Sikora+, 2013)
J/ApJ/850/74 : Swift/BAT AGN Spectroscopic Survey. I. (Koss+, 2017)
J/ApJS/233/17 : Swift/BAT AGN spectroscopic survey. V. X-ray (Ricci+, 2017)
J/ApJ/870/31 : BAT AGN spectroscopic survey. XI. IR phot. (Ichikawa+, 2019)
http://www.sdss.org/ : SDSS home page
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- SWIFT SWIFT Name
15- 38 A24 --- Ctpt Counterpart Name
40- 46 F7.5 --- z [0.005/0.6] Redshift
48- 52 F5.2 [Msun] logMBH [8.5/10.13] log of black hole mass
54- 58 F5.2 [10-7W] logLbol [43.29/47] log of bolometric luminosity,
in erg/s units
60- 64 F5.2 --- logEdd [-3.4/-0.69] log of Eddington ratio
66- 66 A1 --- r_F1.4 Source of Radio flux (1)
68- 76 F9.1 mJy F1.4 [0.9/1598189] Radio Flux at 1.4GHz
78- 82 F5.2 --- R [-2.03/4.1] Radio loudness parameter
84- 85 A2 --- Class Radio Class (2)
87- 93 F7.2 kpc Size [0.01/1519.3]? Size
95- 95 A1 --- l_Size [u] u=upper limit flag on Size,
compact unresolved sources only
97- 97 A1 --- l_logPj Limit flag for logPj
99-103 F5.2 --- logPj [-6.1/0.6]? log of jet power to
bolometric luminosity ratio
105-105 A1 --- RMorph Radio Morphology (3)
107-110 A4 --- FR Fanaroff-Riley classification,
lobed sources only
112-112 A1 --- r_HMorph Source for Host Morphology (4)
114-116 A3 --- HMorph Host Morphology (5)
117 A1 --- f_HMorph i=interacting galaxies (21 occurrences)
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Note (1): Origin of radio flux as follows:
N = NVSS (Cat. VIII/65);
S = SUMSS (see Cat. VIII/81);
F = FIRST (see Cat. VIII/92);
U = undetected.
Note (2): Radio Class as follows:
RQ = radio-quiet (250 occurrences)
RL = radio-loud (44 occurrences)
RI = radio-intermediate (20 occurrences)
Note (3): Radio Morphology as follows:
C = compact (205 occurrences)
T = triple (20 occurrences)
D = double (15 occurrences)
K = knotty (12 occurrences)
X = complex (5 occurrences)
Note (4): Origin of host morphology classification as follows:
H = HST;
S = SDSS;
P = Pan-STARRS;
E = ESO archives (see B/eso).
Note (5): Host Morphology as follows:
S = spiral (126 occurrences)
E = elliptical (62 occurrences)
D = distorted (46 occurrences)
M = merger (7 occurrences)
L = lenticular (6 occurrences)
Irr = irregular (1 occurrence)
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 31-Dec-2021