J/MNRAS/489/3351 Spectral energy distributions of AGNs (Brown+, 2019)
The spectral energy distributions of active galactic nuclei.
Brown M.J.I., Duncan K.J., Landt H., Kirk M., Ricci C., Kamraj N.,
Salvato M., Ananna T.
<Mon. Not. R. Astron. Soc., 489, 3351-3367 (2019)>
=2019MNRAS.489.3351B 2019MNRAS.489.3351B (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Galaxies, Seyfert ; Redshifts ;
Energy distributions ; Ultraviolet ; Optical ; Infrared ;
Photometry ; Spectroscopy
Keywords: galaxies: active - galaxies: distances and redshifts -
quasars: emission lines - quasars: general - galaxies: Seyfert
Abstract:
We present spectral energy distributions (SEDs) of 41 active galactic
nuclei, derived from multiwavelength photometry and archival
spectroscopy. All of the SEDs span at least 0.09 to 30µm, but in
some instances wavelength coverage extends into the X-ray,
far-infrared, and radio. For some active galactic nuclei (AGNs) we
have fitted the measured far-infrared photometry with greybody models,
while radio flux density measurements have been approximated by power
laws or polynomials. We have been able to fill some of the gaps in the
spectral coverage using interpolation or extrapolation of simple
models. In addition to the 41 individual AGN SEDs, we have produced 72
Seyfert SEDs by mixing SEDs of the central regions of Seyferts with
galaxy SEDs. Relative to the literature, our templates have broader
wavelength coverage and/or higher spectral resolution. We have tested
the utility of our SEDs by using them to generate photometric
redshifts for 0<z~<6.12 AGNs in the Bootes field (selected with X-ray,
IR, and optical criteria) and, relative to SEDs from the literature,
they produce comparable or better photometric redshifts with reduced
flux density residuals.
Description:
Our AGN sample was selected based on the availability of
spectrophotometry spanning the 0.1 and 30µm wavelength range,
although some AGNs have gaps in this wavelength range while others
have X-ray and far-infrared spectra. We draw heavily on ground-based
optical and near-infrared spectroscopy from Shang et al.
(2005ApJ...619...41S 2005ApJ...619...41S), Riffel et al. (2006A&A...457...61R 2006A&A...457...61R), Landt et
al. (2008ApJS..174..282L 2008ApJS..174..282L), and Landt et al. (2013MNRAS.432..113L 2013MNRAS.432..113L). At
other wavelengths we utilize spectrophotometry from the Nuclear
Spectroscopic Telescope Array (NuSTAR), Suzaku, XMM-Newton, the
Chandra X-ray observatory, the Far Ultraviolet Spectroscopic Explorer
(FUSE), the Hopkins Ultraviolet Telescope (HUT), the International
Ultraviolet Explorer (IUE), the Wisconsin Ultraviolet
Photo-Polarimeter Experiment (WUPPE), the Galaxy Evolution Explorer
(GALEX), Hubble Space Telescope (HST), Akari, Spitzer, the Infrared
Space Observatory (ISO), and Herschel.
Our final sample consists of 41 AGNs, whose basic properties are
summarized in Table 1. Our use of archival data results in us using
spectra from a large number of archives and papers that are detailed
in Table 2. Our photometry is summarized in Table A1 and the flux
densities synthesized from the SEDs are provided in Table A2.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 100 41 The basic properties of the sample and the SED
wavelength ranges
table2.dat 70 41 The sources of spectroscopy used for the SEDs
tablea1.dat 334 41 Measured photometry (in mJy) corrected for
Milky Way foreground extinction
tablea2.dat 335 41 Synthetic photometry (in mJy) derived from the
SEDs
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 23 A23 --- Name Galaxy name
25- 32 F8.4 deg RAdeg Right ascension (J2000)
34- 41 F8.4 deg DEdeg Declination (J2000)
43- 48 F6.4 --- z Redshift
50- 53 F4.1 mag gmag g-band magnitude
55- 59 F5.1 mag gMAG g-band absolute magnitude
61- 64 F4.2 mag E(B-V) E(B-V) colour excess
66- 67 I2 arcsec Aper Photometric aperture
69- 72 A4 --- Class AGN class from Veron-Cetty & Veron
(2010A&A...518A..10V 2010A&A...518A..10V, Cat. VII/258)
74- 77 I4 0.1nm EW ? Equivalent width (Hα+[NII])
79- 84 E6.2 um lambdamin SED wavelenght range λmin
86- 91 E6.2 um lambdamax SED wavelenght range λmax
93- 95 F3.1 --- scalemin Scaling minimum value (1)
97-100 F4.1 --- scalemax Scaling maximum value (1)
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Note (1): For half the sample the scalings never exceed the 0.5 to 2.0 range,
but seven AGNs have scalings that fall outside the 0.33 to 3.0 range
(3C 390.3, Ark 120, Mrk 110, Mrk 509, NGC 5548, NGC 5728, and
PKS 1345+12)
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Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 23 A23 --- Name Galaxy name
25 A1 --- rinf0.01 Source of the <0.01µm spectra (1)
27- 39 A13 --- r0.09-0.33 Source of the 0.09-0.33µm spectra (1)
41- 51 A11 --- r0.33-1.0 Source of the 0.33-1.0µm spectra (1)
53- 57 A5 --- r1.0-2.5 Source of the 1.0-2.5µm spectra (1)
59 A1 --- r2.5-5 Source of the 2.5-5µm spectra (1)
61 A1 --- r5-42 Source of the 5-42µm spectra (1)
63- 70 A8 --- r42-500 Source of the 42-500µm spectra (1)
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Note (1): Refences as follows:
1 = Spitzer IRS
2 = Akari
3 = Landt et al. (2008ApJS..174..282L 2008ApJS..174..282L)
4 = Landt et al.(2013MNRAS.432..113L 2013MNRAS.432..113L)
5 = Riffel et al. (2006A&A...457...61R 2006A&A...457...61R)
6 = This work
7 = Shang et al. (2005ApJ...619...41S 2005ApJ...619...41S)
8 = HSLA Peeples et al. (2017cos..rept....4P)
9 = STIS
10 = FOS
11 = FUSE
12 = IUE
13 = HUT
14 = SDSS
15 = MUSE
16 = AGN Watch
17 = UVES
18 = XShooter
19 = Herschel SPIRE
20 = Herschel PACS
21 = ISO
22 = WUPPE
23 = SINFONI
24 = MIPS SED
25 = COS
26 = GALEX
27 = BASS (Koss et al. 2017ApJ...850...74K 2017ApJ...850...74K, Cat. J/ApJ/850/74;
Lamperti et al. 2017MNRAS.467..540L 2017MNRAS.467..540L, Cat. J/MNRAS/467/540)
28 = S7 (Dopita et al. 2015ApJS..217...12D 2015ApJS..217...12D, Cat. J/ApJS/217/12)
29 = Kim et al. (1995ApJS...98..129K 1995ApJS...98..129K)
30 = Veilleux, Sanders & Kim (1999ApJ...522..139V 1999ApJ...522..139V)
31 = Wilkes et al. (1999ApJ...513...76W 1999ApJ...513...76W)
32 = Jansen et al. (2000ApJS..126..331J 2000ApJS..126..331J, Cat. J/ApJS/126/331)
33 = Kuraszkiewicz et al. (2000ApJ...542..631K 2000ApJ...542..631K)
34 = Decarli et al. (2008MNRAS.387.1237D 2008MNRAS.387.1237D)
35 = Glikman et al. (2006ApJ...640..579G 2006ApJ...640..579G, Cat. J/ApJ/640/579)
36 = Rodriguez Zaurin, Tadhunter & Gonzalez Delgado (2009MNRAS.400.1139R 2009MNRAS.400.1139R)
37 = Smith et al. (2009arXiv0912.3621S 2009arXiv0912.3621S)
38 = Garcia-Rissmann et al. (2012ApJ...751....7G 2012ApJ...751....7G)
39 = Glikman et al. (2012ApJ...757...51G 2012ApJ...757...51G, Cat. J/ApJ/757/51)
40 = Leighly et al. (2014ApJ...788..123L 2014ApJ...788..123L, Cat. J/ApJ/788/123)
41 = Barth et al. (2015ApJS..217...26B 2015ApJS..217...26B, Cat. J/ApJS/217/26)
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Byte-by-byte Description of file: tablea1.dat tablea2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 23 A23 --- Name Galaxy name
25- 32 F8.4 deg RAdeg Right ascension (J2000)
34- 41 F8.4 deg DEdeg Declination (J2000)
43- 48 F6.3 mJy FFUV ? FUV flux from GALEX
50- 55 F6.3 mJy FUVW2 ? UVW2 flux from Swift/UVOT
57- 62 F6.3 mJy FUVM2 ? UVM2 flux from Swift/UVOT
64- 69 F6.3 mJy FNUV ? NUV flux from GALEX
71- 76 F6.3 mJy FUVW1 ? UVW1 flux from Swift/UVOT
78- 83 F6.3 mJy FUSwift ? Flux on the Swift/UVOT U-band
85- 90 F6.3 mJy FuSM ? Flux on the SkyMapper u-band
92- 97 F6.3 mJy FuSDSS ? Flux on the SDSS u-band
99-104 F6.3 mJy FvSM ? Flux on the SkyMapper v-band
106-111 F6.3 mJy FBSwift ? Flux on the Swift/UVOT B-band
113-118 F6.3 mJy FgSDSS ? Flux on the SDSS g-band
120-125 F6.3 mJy FgPS1 ? Flux on the Pan-STARRS1 g-band
127-132 F6.3 mJy FgSM ? Flux on the SkyMapper g-band
134-139 F6.3 mJy FVSwift ? Flux on the Swift/UVOT V-band
141-146 F6.3 mJy FrSDSS ? Flux on the SDSS r-band
148-153 F6.3 mJy FrPS1 ? Flux on the Pan-STARRS1 r-band
155-160 F6.3 mJy FrSM ? Flux on the SkyMapper r-band
162-166 F5.2 mJy FiSDSS ? Flux on the SDSS i-band
168-172 F5.2 mJy FiPS1 ? Flux on the Pan-STARRS1 i-band
174-178 F5.2 mJy FiSM ? Flux on the SkyMapper i-band
180-184 F5.2 mJy FzPS1 ? Flux on the Pan-STARRS1 i-band
186-190 F5.2 mJy FzSDSS ? Flux on the SDSS z-band
192-196 F5.2 mJy FzSM ? Flux on the SkyMapper z-band
198-202 F5.2 mJy FyPS1 ? Flux on the Pan-STARRS1 y-band
204-209 F6.2 mJy FJ Flux on the 2MASS J-band
211-216 F6.2 mJy FH Flux on the 2MASS H-band
218-223 F6.2 mJy FK Flux on the 2MASS K-band
225-230 F6.2 mJy FW1 Flux on the WISE W1 band
232-237 F6.2 mJy F3.6 ? Sptizer/IRAC 3.6um flux
239-244 F6.2 mJy F4.5 ? Sptizer/IRAC 4.5um flux
246-251 F6.2 mJy FW2 Flux on the WISE W2 band
253-257 F5.1 mJy F5.8 ? Sptizer/IRAC 5.8um flux
259-264 F6.1 mJy F8.0 ? Sptizer/IRAC 8.0um flux
266-271 F6.1 mJy FW3 Flux on the WISE W3 band
273-278 F6.1 mJy FW4 Flux on the WISE W4 band
280-285 F6.1 mJy F24 ? Spitzer/MIPS 24um flux
287-293 F7.1 mJy F70 ? Herschel/PACS 70um flux
295-301 F7.1 mJy F100 ? Herschel/PACS 100um flux
303-309 F7.1 mJy F160 ? Herschel/PACS 160um flux
311-317 F7.1 mJy F250 ? Herschel/SPIRE 250um flux
319-326 F8.2 mJy F350 ? Herschel/SPIRE 350um flux
328-335 F8.2 mJy F500 ? Herschel/SPIRE 500um flux
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History:
From electronic version of the journal
(End) Ana Fiallos [CDS] 12-Jan-2023