J/AJ/140/533 Morphologies of selected AGN (Griffith+, 2010)
Morphologies of radio-, X-ray-, and mid-infrared-selected active galactic
nuclei.
Griffith R.L., Stern D.
<Astron. J., 140, 533-545 (2010)>
=2010AJ....140..533G 2010AJ....140..533G
ADC_Keywords: Active gal. nuclei ; Morphology ; Redshifts ;
Photometry, infrared ; X-ray sources ; Radio sources
Keywords: galaxies: active - galaxies: evolution - galaxies: structure
Abstract:
We investigate the optical morphologies of candidate active galaxies
identified at radio, X-ray, and mid-infrared wavelengths. We use the
Advanced Camera for Surveys General Catalog (ACS-GC) to identify 372,
1360, and 1238 active galactic nucleus (AGN) host galaxies from Very
Large Array, XMM-Newton, and Spitzer Space Telescope observations of
the COSMOS field, respectively. We investigate both quantitative
(GALFIT) and qualitative (visual) morphologies of these AGN host
galaxies, split by brightness in their selection band.
Description:
The cornerstone data set for the COSMOS survey is its wide-field HST
Advanced Camera for Surveys (ACS) imaging (Scoville et al.
2007ApJS..172...38S 2007ApJS..172...38S). With 583 single-orbit HST ACS F814W (I band;
hereafter I814) observations, it is the largest contiguous HST imaging
survey to date.
The VLA-COSMOS large project (Schinnerer et al., 2007, Cat.
J/ApJS/172/46) acquired deep, uniform 1.4GHz data over the entire
COSMOS field using the A-array configuration of the Very Large Array
(VLA).
The XMM-Newton COSMOS survey (Hasinger et al., 2007, Cat.
J/ApJS/172/29; Cappelluti et al., 2009, Cat. J/A+A/497/635) acquired
deep X-ray data over the entire COSMOS HST ACS field.
The S-COSMOS survey (Sanders et al., 2007ApJS..172...86S 2007ApJS..172...86S) is a Spitzer
Legacy program which carried out a uniformly deep survey of the full
COSMOS field in seven mid-IR bands (3.6, 4.5, 5.8, 8.0, 24, 70, and
160um).
The Advanced Camera for Surveys General Catalog2 (ACS-GC) data (R.L.
Griffith et al., 2012ApJS..200....9G 2012ApJS..200....9G) was constructed to study the
evolution of galaxy morphologies over a wide range of look-back times.
The ACS-GC uniformly analyzes the largest HST ACS imaging surveys
(AEGIS, GEMS, GOODS-S, GOODS-N, and COSMOS) using the GALAPAGOS code.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table6.dat 70 41 Disk galaxies with an unobscured AGN
table7.dat 72 2413 Morphological parameters for AGN candidates
table8.dat 160 2413 Photometric and spectroscopic parameters for
AGN candidates
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See also:
J/ApJS/172/29 : XMM-Newton survey in COSMOS field. I. (Hasinger+, 2007)
J/ApJS/172/46 : VLA-COSMOS survey. II. (Schinnerer+, 2007)
J/A+A/497/635 : XMM wide-field survey in COSMOS field (Cappelluti+, 2009)
Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- ID [20001881/20199204] Identification number
10- 20 F11.7 deg RAdeg Right Ascension in decimal degrees (J2000)
22- 30 F9.7 deg DEdeg Declination in decimal degrees (J2000)
32- 43 F12.7 --- zsp ?=-999 Spectroscopic redshift
45- 56 F12.7 --- zph ?=-999 Photometric redshift
58- 67 F10.7 mag Imag HST/ACS F814W band magnitude (1)
69- 70 I2 --- Type AGN type (G1)
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Note (1): SExtractor MAG BEST magnitude (AB system).
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 I8 --- ID [20000085/20319159] Identification number
10- 20 F11.7 deg RAdeg Right Ascension in decimal degrees (J2000)
22- 30 F9.7 deg DEdeg Declination in decimal degrees (J2000)
32- 35 F4.2 --- st Source stellarity index (1=Star, 0=extended)
37- 46 F10.7 mag Imag HST/ACS F814W band AB magnitude (1)
48- 57 F10.7 arcsec reff Effective radius
59- 67 F9.7 --- n Sersic index value
69 A1 --- mp Visual morphological classification (2)
71- 72 I2 --- Type AGN type (G1)
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Note (1): SExtractor MAG BEST magnitude (AB system).
Note (2): For sources brighter than Imag=22.5, classification as follows:
A = bulge-dominated;
B = disk;
C = unresolved (point source);
D = S0;
E = other.
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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- 8 I8 --- ID [20000085/20319159] Identification number
10- 20 F11.7 deg RAdeg Right Ascension in decimal degrees (J2000)
22- 30 F9.7 deg DEdeg Declination in decimal degrees (J2000)
32- 43 F12.7 mag [3.6] ?=-999 Spitzer/IRAC 3.6um band Vega mag
45- 56 F12.7 mag [4.5] ?=-999 Spitzer/IRAC 4.5um band Vega mag
58- 69 F12.7 mag [5.8] ?=-999 Spitzer/IRAC 5.8um band Vega mag
71- 82 F12.7 mag [8.0] ?=-999 Spitzer/IRAC 8.0um band Vega mag
84- 95 F12.7 10-17W/m2 Xs ?=-999 XMM soft 0.5-2keV flux density
97-108 F12.7 10-17W/m2 Xh ?=-999 XMM hard 2-10keV flux density
110-121 F12.7 10-17W/m2 Xuh ?=-999 XMM hard 5-10keV flux density
123-134 F12.7 mJy S1.4 ?=-999 Radio 1.4GHz flux density
136-147 F12.7 --- zsp ?=-999 Spectroscopic redshift
149-160 F12.7 --- zph ?=-999 Photometric redshift
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Global notes:
Note (G1): Indicates which sample(s) each AGN comes from:
1 = IRAC1: brighter mid-IR AGN candidates (Eisenhardt et al.
2004ApJS..154...48E 2004ApJS..154...48E);
2 = IRAC2: fainter mid-IR AGN candidates;
4 = XMM1: sources with X(0.5-2.0keV)≥5aW/m2 (5x10-15erg/cm2/s);
8 = XMM2: sources with X(0.5-2.0keV)<5aW/m2;
16 = VLA1: sources with S(1.4GHz)≥1mJy;
32 = VLA2: sources with S(1.4GHz)<1mJy.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 15-Jun-2012