J/MNRAS/492/315 Very massive radio-loud and radio-quiet AGN (Gupta+, 2020)
Comparison of SEDs of very massive radio-loud and radio-quiet AGN.
Gupta M., Sikora M., Rusinek K.
<Mon. Not. R. Astron. Soc., 492, 315-325 (2020)>
=2020MNRAS.492..315G 2020MNRAS.492..315G (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Accretion ; Radio sources ; X-ray sources ;
Photometry, infrared ; Photometry, ultraviolet
Keywords: accretion - accretion discs - radiation mechanisms: non-thermal -
radiation mechanisms: thermal - galaxies: active - galaxies: jets
Abstract:
The main objective of this work is to establish and interpret the
dominant spectral components and their differences in radio-loud (RL)
and radio-quiet (RQ) AGN with very massive black holes, and accreting
at moderate rates. Such a sample is selected from the Swift/BAT
catalogue of AGN having determined optical spectra types and hosting
black holes with masses >108.5M☉. We confirm our previous
results, that radio loudness distribution of Swift/BAT AGN is bimodal
and that radio galaxies are about two times X-ray louder than their RQ
counterparts. We show that the average X-ray loudness (defined as a
ratio of luminosity in the 14-195keV band to that at 12µm) of Type
1 and Type 2 AGN is very similar. This similarity holds for both RL
and RQ subsamples and indicates negligible dependence of the observed
X-ray luminosities on the inclination angle in both populations. In
both the radiative output is dominated by mid-IR and hard X-ray
components, and relatively weak UV luminosities indicate large amounts
of dust in polar regions.
Description:
The primary sample of AGN selected in this work is the same as in
Gupta et al. (2018MNRAS.480.2861G 2018MNRAS.480.2861G). It is taken from the BAT AGN
Spectroscopic Survey (Ricci et al. 2017ApJS..233...17R 2017ApJS..233...17R, Cat.
J/ApJS/233/17) and then reduced by excluding blazars and Compton-thick
(logNH>24) AGN. Such a sample, counting 664 objects, was further
reduced by excluding those AGN which do not have optical spectroscopic
classification in Koss et al. (2017ApJ...850...74K 2017ApJ...850...74K, Cat.
J/ApJ/850/74).
Following this we selected 394 Type 1 AGN and 232 Type 2 AGN, where
the Type 1 sample includes all AGN having at least one broad Balmer
emission line. All AGN in these samples have data on hard X-ray fluxes
(14-19 keV) from Swift/Burst Alert Telescope (Baumgartner et al.
2013ApJS..207...19B 2013ApJS..207...19B, Cat. J/ApJS/207/19) and on mid-IR fluxes from
Wide-field Infrared Survey Explorer mission (WISE; Wright et al.
2010AJ....140.1868W 2010AJ....140.1868W; Gupta et al. 2018MNRAS.480.2861G 2018MNRAS.480.2861G).
The above Type 1 and Type 2 BAT-AGN subsamples have then been
cross-matched with NVSS (National Radio Astronomy Observatory (NRAO)
Very Large Array (VLA) Sky Survey; Condon et al. 1998AJ....115.1693C 1998AJ....115.1693C,
Cat. VIII/65) and SUMSS (Sydney University Molonglo Sky Survey; Bock,
Large & Sadler 1999AJ....117.1578B 1999AJ....117.1578B; Mauch et al. 2003MNRAS.342.1117M 2003MNRAS.342.1117M,
Cat. VIII/81B) radio catalogues using the same procedure as in Gupta et
al. (2018MNRAS.480.2861G 2018MNRAS.480.2861G).
The final sample consists of 290 AGN (315 AGN while including RI). Its RL
subset has 44 objects (27 Type 1 and 17 Type 2) and the RQ subset has
246 objects (153 Type 1 and 93 Type 2).
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tabled1.dat 238 290 RL & RQ catalogue
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See also:
J/ApJS/233/17 : Swift/BAT AGN spectroscopic survey. V. X-ray data
(Ricci+, 2017)
J/ApJ/850/74 : Swift/BAT AGN Spectroscopic Survey. I. (Koss+, 2017)
J/ApJS/207/19 : Hard X-ray survey from Swift-BAT 2004-2010
(Baumgartner+, 2013)
VIII/65 : 1.4GHz NRAO VLA Sky Survey (NVSS) (Condon+ 1998)
VIII/81B : Sydney University Molonglo Sky Survey (SUMSS V2.1)
(Mauch+ 2008)
Byte-by-byte Description of file: tabled1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 24 A24 --- Name AGN name from Swift/BAT catalogue
26- 33 F8.4 deg RAdeg Right ascension (J2000)
35- 42 F8.4 deg DEdeg Declination (J2000)
44- 50 F7.5 --- z Redshift
52- 62 F11.5 [-] logR Logarithm of the radio loudness
64- 66 A3 --- RClass Radio classification of object (1)
68- 72 A5 --- OType Optical classification
74- 85 F12.9 [Msun] logMBH Logarithm of the black hole mass determined
from K-band luminosity
87- 99 F13.9 [-] logEdd ?=-99 Logarithm of the Eddington ratio
101-105 F5.2 [cm-2] logNH Logarithm of the Hydrogen column density
107-117 F11.8 [10-7W] logLW1 Logarithm of WISE W1 luminosity
119-129 F11.8 [10-7W] logLW2 Logarithm of WISE W2 luminosity
131-141 F11.8 [10-7W] logLW3 Logarithm of WISE W3 luminosity
143-153 F11.8 [10-7W] logLW4 Logarithm of WISE W4 luminosity
155-165 F11.8 [10-7W] logLJ Logarithm of 2MASS J-band luminosity
167-177 F11.8 [10-7W] logLH Logarithm of 2MASS H-band luminosity
179-189 F11.8 [10-7W] logLK Logarithm of 2MASS K-band luminosity
191-201 F11.8 [10-7W] logLFUV Logarithm of GALEX FUV luminosity
203-205 A3 --- n_logLFUV [Yes/No ] Indicates if logLFUV is an upper
limit
207-217 F11.8 [10-7W] logLNUV Logarithm of GALEX NUV luminosity
219-221 A3 --- n_logLNUV [Yes/No ] Indicates if logLNUV is an upper
limit
223-227 F5.2 [10-7W] logL2keV Logarithm of the X-ray luminosity in the
2-10keV band
229-233 F5.2 [10-7W] logL14keV Logarithm of the X-ray luminosity in the
14-195keV band
235-238 F4.2 --- Gamma Photon index in the X-ray band 14-195 keV
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Note (1): Radio classification as follows:
RQ = Radio-quiet AGN (191/290)
RQU = Radio undetected sources (55/290)
VRL = Radio-loud AGN (44/290)
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History:
From electronic version of the journal
(End) Ana Fiallos [CDS] 28-Feb-2023