J/ApJ/754/45 IR properties of Swift/BAT X-ray AGNs (Ichikawa+, 2012)
Mid- and far-infrared properties of a complete sample of local active
galactic nuclei.
Ichikawa K., Ueda Y., Terashima Y., Oyabu S., Gandhi P., Matsuta K.,
Nakagawa T.
<Astrophys. J., 754, 45 (2012)>
=2012ApJ...754...45I 2012ApJ...754...45I
ADC_Keywords: Active gal. nuclei ; X-ray sources ; Infrared sources ; Surveys
Keywords: galaxies: active; galaxies: nuclei; infrared: galaxies
Abstract:
We investigate the mid- (MIR) to far-infrared (FIR) properties of a
nearly complete sample of local active galactic nuclei (AGNs) detected
in the Swift/Burst Alert Telescope (BAT) all-sky hard X-ray (14-195
keV) survey, based on the cross correlation with the AKARI infrared
survey catalogs complemented by those with Infrared Astronomical
Satellite and Wide-field Infrared Survey Explorer. Out of 135
non-blazer AGNs in the Swift/BAT nine-month catalog, we obtain the MIR
photometric data for 128 sources either in the 9, 12, 18, 22, and/or
25 µm band. We find good correlation between their hard X-ray and
MIR luminosities over three orders of magnitude (42 < log
λLλ(9, 18 µm) < 45), which is tighter than that
with the FIR luminosities at 90 µm. This suggests that thermal
emission from hot dusts irradiated by the AGN emission dominate the
MIR fluxes. Both X-ray unabsorbed and absorbed AGNs follow the same
correlation, implying isotropic infrared emission, as expected in
clumpy dust tori rather than homogeneous ones. We find excess signals
around 9 µm in the averaged infrared spectral energy distribution
from heavy obscured "new type" AGNs with small scattering fractions in
the X-ray spectra. This could be attributed to the polycyclic aromatic
hydrocarbon emission feature, suggesting that their host galaxies have
strong starburst activities.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 114 135 *Infrared and X-ray properties of the AGNs in
the nine-month Swift/BAT catalog
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Note on table1.dat: This table summarizes the infrared to X-ray properties of
all the 135 Swift/BAT nine-month non-blazar AGNs in Tueller et al. (2008,
Cat. J/ApJ/681/113), including 128 with MIR counterparts.
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See also:
II/311 : WISE All-Sky Data Release (Cutri+ 2012)
II/298 : AKARI/FIS All-Sky Survey Point Source Catalogues (ISAS/JAXA, 2010)
II/297 : AKARI/IRC mid-IR all-sky Survey (ISAS/JAXA, 2010)
II/156 : IRAS Faint Source Catalog, |b| > 10, Version 2.0 (Moshir+ 1989)
II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)
J/A+A/561/A67 : 54-month Palermo BAT cat. sources classification (Parisi, 2014)
J/ApJS/207/19 : Hard X-ray survey from Swift-BAT 2004-2010 (Baumgartner+, 2013)
J/ApJ/753/104 : AGN identifications from AKARI and Swift (Matsuta+, 2012)
J/ApJ/749/21 : AGNs detected by 60 month Swift/BAT survey (Ajello+, 2012)
J/A+A/541/A160 : Planck + X/γ observations of blazars (Giommi+, 2012)
J/ApJ/728/58 : Swift-BAT survey of AGNs (Burlon+, 2011)
J/ApJ/739/57 : Ultra hard X-ray AGNs in the Swift/BAT survey (Koss+, 2011)
J/A+A/510/A48 : Palermo Swift-BAT Hard X-ray Catalogue (Cusumano+, 2010)
J/A+A/524/A64 : The 54-month Palermo BAT-survey catalogue (Cusumano+, 2010)
J/ApJ/681/113 : Swift BAT survey of AGNs (Tueller+, 2008)
J/ApJ/678/102 : BAT X-ray survey. I. (Ajello+, 2008)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq [1/154] Running sequence number (1)
5- 6 A2 --- f_Seq [** ] "New type" AGN (2)
8- 30 A23 --- Name Object name (1)
32- 39 F8.6 --- z [0.001/0.2] Redshift (1)
41- 46 F6.3 Jy F(9) [0/10.2]? IR flux (Fν) at 9um
48- 53 F6.3 Jy F(18) [0/13.2]? IR flux (Fν) at 18um
55- 60 F6.3 Jy F(90) [0.4/80.4]? IR flux (Fν) at 90um
62- 66 F5.2 [10-7W] L9 [39.9/45.2]? IR luminosity at 9um (3)
68- 72 F5.2 [10-7W] L18 [40.2/45.1]? IR luminosity at 18um (3)
74- 78 F5.2 [10-7W] L90 [42.1/45.1]? IR luminosity at 90um (3)
80- 86 A7 --- IRcat IR reference catalogs for 9um, 18um, and
90um: A=AKARI, I=IRAS, W=WISE.
88- 91 F4.1 10-14W/m2 Fhx [2.1/74.8] Hard X-ray flux in the 15-196keV
band, in 10-11erg/cm2/s (1)
93- 97 F5.2 [10-7W] logLhx [40.8/45.4] Hard X-ray luminosity (logLHX
in the 15-196 band (erg/s)
99-105 F7.3 10+22/cm2 N(H) [0/500] X-ray absorption column density (4)
107-112 F6.4 --- fc [0.4/1]? Covering fraction of the absorber
in the X-ray spectrum (4)
114 A1 --- Xcat Reference for the X-ray spectra (5)
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Note (1): Data from Tueller et al. (2008, Cat. J/ApJ/681/113) except for
the redshifts of two sources, No.13 (2MASX J02162987+5126246) and
No.53 (2MASX J06403799-4321211), which are adopted from the
Swift/BAT 58 month catalog
(http://heasarc.gsfc.nasa.gov/docs/swift/results/bs58mon/).
Note (2): The sources with asterisks "**" represent "new type" AGNs which
exhibit extremely small scattered fraction (fscat=1-fc≤0.005,
thus fc≥0.995) suggesting geometrically thick tori around the nuclei.
Note (3): The luminosities are here defined as λLλ, in erg/s.
For AGNs whose AKARI MIR fluxes are not available, we convert the
infrared fluxes and luminosities with IRAS or WISE into those at 9um
or 18um according to the formula given in Section 2.5.
Note (4): The X-ray spectral information is basically adopted from Winter
et al. (2009ApJ...690.1322W 2009ApJ...690.1322W), while we refer to the results obtained
with Suzaku (flag "d" to "m" and "o" in column "Xcat") and those with
XMM-Newton (flag "c" or "n" in column "Xcat") whenever available. When
the information is not available in Winter et al. (2009ApJ...690.1322W 2009ApJ...690.1322W),
we refer to Tueller et al. (2008, Cat. J/ApJ/681/113).
Note (5): Reference as follows:
a = Winter et al. (2009ApJ...690.1322W 2009ApJ...690.1322W)
b = Tueller et al. (2008, Cat. J/ApJ/681/113)
c = Noguchi et al. (2010ApJ...711..144N 2010ApJ...711..144N)
d = Eguchi et al. (2011ApJ...729...31E 2011ApJ...729...31E)
e = Eguchi et al. (2009ApJ...696.1657E 2009ApJ...696.1657E)
f = Risaliti et al. (2009ApJ...705L...1R 2009ApJ...705L...1R)
g = Turner et al. (2009ApJ...698...99T 2009ApJ...698...99T)
h = Awaki et al. (2008PASJ...60S.293A 2008PASJ...60S.293A)
i = Gonzalez-Martin et al. (2011A&A...527A.142G 2011A&A...527A.142G)
j = Winter et al. (2009ApJ...701.1644W 2009ApJ...701.1644W)
k = Itoh et al. (2008PASJ...60S.251I 2008PASJ...60S.251I)
l = Tazaki et al. (2011ApJ...738...70T 2011ApJ...738...70T)
m = Winter & Mushotzky (2010ApJ...719..737W 2010ApJ...719..737W)
n = Ballantyne (2005MNRAS.362.1183B 2005MNRAS.362.1183B)
o = Bianchi et al. (2009ApJ...695..781B 2009ApJ...695..781B).
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 03-Mar-2014