J/AJ/133/186 Optical spectroscopy of 77 luminous AGNs and QSOs (Lacy+, 2007)
Optical spectroscopy and X-ray detections of a sample of quasars and active
galactic nuclei selected in the mid-infrared from two Spitzer space telescope
wide-area surveys.
Lacy M., Petric A.O., Sajina A., Canalizo G., Storrie-Lombardi L.J.,
Armus L., Fadda D., Marleau F.R.
<Astron. J., 133, 186-205 (2007)>
=2007AJ....133..186L 2007AJ....133..186L
ADC_Keywords: QSOs ; Active gal. nuclei ; Galaxies, IR ; Spectroscopy
Keywords: galaxies: Seyfert - infrared: galaxies - quasars: general
Abstract:
We present optical spectroscopy of a sample of 77 luminous active
galactic nuclei (AGNs) and quasars selected on the basis of their
mid-infrared colors. Our objects are selected from the Spitzer
Extragalactic First Look Survey and the SWIRE XMM-Newton Large-Scale
Structure Survey (XMM-LSS) fields, with a typical 24um flux density
of 5mJy. The median redshift is 0.6, with a range of ∼0.05-4. Only
33% (25 out of 77) of these objects are normal type 1 quasars, with no
obscuration. Forty-four percent (34 out of 77) are type 2 objects,
with high-ionization, narrow emission lines, and 14% (11 out of 77)
are dust-reddened type 1 quasars, showing broad lines but a
dust-reddened or unusually weak quasar continuum.
Description:
We selected samples of AGNs by mid-infrared color from the XFLS and
SWIRE XMM-LSS fields.
Most data were taken with the COSMIC instrument on the Palomar 200
inch (5m) telescope. Some spectra were obtained with the ISIS
instrument at the 4.2m William Herschel Telescope (WHT) on La Palma,
with the Echellette Spectrograph and Imager (ESI) at the Keck II
telescope, or with the Kast spectrograph at the 3m Shane Telescope at
Lick Observatory.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 79 33 Observing Log for the XFLS AGN Sample
table2.dat 79 31 Observing Log for the SWIRE XMM-LSS Sample
table3.dat 98 43 Bright AGNs in the XFLS Region
table4.dat 97 34 Bright AGNs in the SWIRE XMM-LSS Region
table5.dat 86 21 XMM-Newton Detections of AGNs in the SWIRE Field
table6.dat 112 50 The 50 Brightest Extragalactic 24um Sources in
the XFLS with Four-Band IRAC Coverage
table7.dat 111 17 Non-SDSS Objects in the XFLS Sample with
Spectra in Papovich et al. (2006, J/AJ/132/231)
table8.dat 87 8 *Objects in the 8um
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Note on table8.dat: Selected Sample of Paper I, Lacy et al. 2004ApJS..154..166L 2004ApJS..154..166L.
Not in the 24um Flux-limited XFLS Sample.
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See also:
J/AJ/132/231 : MMT hectospec redshift survey of 24um sources (Papovich+, 2006)
Byte-by-byte Description of file: table1.dat table2.dat
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Bytes Format Units Label Explanations
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1- 26 A26 --- Name Name (1)
28- 37 A10 "YYYY/MM/DD" Obs.date Observation date
39- 59 A21 --- Tel Telescope/instrument (2)
60- 66 A7 --- Exp Exposure Time (NNxNNNN with NNNN in seconds)
68- 70 F3.1 --- Slit Slit designation (width?)
72- 75 F4.2 --- AirMass Air Mass
77- 79 I3 deg PA Position angle of slit
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Note (1): In table1, SSTXFLS JHHMMSS.s+DDMMSS,
SSTXFLS24 JHHMMSS.s+DDMMSS in Simbad
In table2, SWIRE2 JHHMMSS.ss+DDMMSS.s,
SWIRE JHHMMSS.ss+DDMMSS.s in Simbad
Note (2): Most of the observations were made with the Cosmis intrument on
the Palomar 200-inch telescope. Some spectra were obtained with the
ISIS instrument at the 4.2m william Herschel Telescope (WHT) at La
Palma, with ESI at the KeckII telescopie, or with the 3m Shane
Telescope at Lick Observatory. DbleSpec = Double Spectrograph
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Byte-by-byte Description of file: table3.dat table4.dat
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Bytes Format Units Label Explanations
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1- 26 A26 --- Name Name (1)
27 A1 --- n_Name [*] * : spectrum from Papovich et al.
(2006, Cat. J/AJ/132/231)
29- 32 F4.1 mJy S24um Flux at 24um
34- 38 F5.3 --- z Redshift
39 A1 --- n_z [?+] Note on Redshift (2)
42- 47 A6 --- Class Classification (G1)
50- 97 A48 --- Basis Classification basis (3)
98 A1 --- n_Basis [ab] Note (4)
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Note (1): In table3, SDSS JHHMMSS.s+DDMMSS or
SSTXFLS JHHMMSS.s+DDMMSS (SSTXFLS24 JHHMMSS.s+DDMMSS in Simbad)
In table4, SWIRE2 JHHMMSS.ss+DDMMSS.s,
SWIRE JHHMMSS.ss+DDMMSS.s in Simbad
Note (2): Note on redshift as follows:
+ = indicates that the optical/near-infrared redshift is uncertain,
but a Spitzer mid-infrared spectrum shows silicate absorption
at z=0.84 (M. Lacy et al. 2007, in preparation).
? = uncertainty flag
Note (3): BL for Objects with line widths of at least
one permitted emission line >3000km/s.
Note (4): Notes as follows:
a = LoBAL: Low-ionization broad absorption line.
b = classification based on the Papovich et al. (2006,
Cat. J/AJ/132/231) spectrum; see Appendix A.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 26 A26 --- Name Name (SWIRE2 JHHMMSS.ss+DDMMSS.s) (1)
28- 32 F5.3 --- z Redshift
33 A1 --- u_z [?] Uncertainty flag on z
36- 41 A6 --- Class Optical class (G1)
44- 53 A10 --- ObsID ObsID
55- 59 I5 s ExpTime Exposure time
61- 64 A4 --- Cam Camera
66- 67 A2 --- l_Counts [~< ] Limit flag on Counts
68- 72 I5 ct Counts X-ray counts
74- 77 A4 --- r_Counts Source of counts (PPS, 1XMM or 2XMM)
79- 80 A2 --- l_SX [~< ] Limit flag on SX
81- 86 F6.2 10-17W/m2 SX Flux in 0.2-12keV band (10-14erg/cm2/s)
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Note (1): SWIRE JHHMMSS.ss+DDMMSS.s in Simbad
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 26 A26 --- Name Name (SDSS JHHMMSS.s+DDMMSS or
SSTXFLS JHHMMSS.s+DDMMSS)(1)
27 A1 --- n_Name [+] + for parts of a single galaxy
29- 33 F5.2 mJy S24um Flux at 24um
35- 39 F5.2 mag Rmag R magnitude
41- 44 A4 --- Spect Provenance of spectra (2)
46- 50 F5.3 --- z Redshift
51 A1 --- u_z [?] Uncertainty flag on z
53- 58 A6 --- Class Classification (G1)
61-108 A48 --- Basis Classification basis (3)
110-112 A3 --- IRAC [Yes/No ] IRAC-selected AGN?
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Note (1): For SSTXFLS JHHMMSS.s+DDMMSS, SSTXFLS24 JHHMMSS.s+DDMMSS in Simbad
Note (2): Provenance of spectra as follows:
L06 = this paper
L06* = this paper, additional spectra obtained using COSMIC on the
Palomar 200 inch telescope, 2005 June 27-28
P06 = Papovich et al. (2006, Cat. J/AJ/132/231)
SDSS = SDSS Data Release 4
Note (3): BL for Objects with line widths of at least
one permitted emission line >3000km/s.
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 26 A26 --- Name Name (SSTXFLS JHHMMSS.s+DDMMSS) (1)
28- 31 F4.1 mJy S24um Flux at 24um
33- 37 F5.3 --- z Redshift
39- 44 A6 --- Class Classification (G1)
46- 91 A46 --- Basis Classification basis
93-111 A19 --- Class2 Papovich et al. (2006, Cat. J/AJ/132/231)
classification (2)
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Note (1): SSTXFLS24 JHHMMSS.s+DDMMSS in Simbad
Note (2): Classification of the object in the MMT Hectospec survey of
Papovich et al. (2006, Cat. J/AJ/132/231), in the form class/subclass.
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 26 A26 --- Name Name (SSTXFLS JHHMMSS.s+DDMMSS) (1)
28- 31 F4.2 mJy S8um Flux at 8um
33- 37 F5.3 --- z ? Redshift
38 A1 --- u_z [?] Uncertainty flag on z
39 A1 --- n_z [*] *: spectrum is from Papovich et al.
(2006, Cat. J/AJ/132/231)
41- 49 A9 --- Class Classification
50- 87 A38 --- Basis Classification basis
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Note (1): SSTXFLS8 JHHMMSS.s+DDMMSS in Simbad.
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Global Notes:
Note (G1): Classes are defined as follows:
1 = Normal quasars / Seylfert-1 galaxies
1R = dust-reddened quasar
2 = type-2 quasar
2HZ = high-z type-2 quasar
Sbt = Starburst galaxy
Sbt/L = Starburst galaxy/LINER
History:
From electronic version of the journal
* 29-May-2009: SSTSFLS J171454.4+584948 corrected into
SSTXFLS J171454.4+584948
References:
Lacy et al., Paper I 2004ApJS..154..166L 2004ApJS..154..166L
(End) Patricia Vannier [CDS] 11-Dec-2008