J/AJ/141/1 Spitzer observations of GOODS fields (Teplitz+, 2011)
Spitzer infrared spectrometer 16µm observations of the GOODS fields.
Teplitz H.I., Chary R., Elbaz D., Dickinson M., Bridge C., Colbert J.,
Le Floc'h E., Frayer D.T., Howell J.H., Koo D.C., Papovich C., Phillips A.,
Scarlata C., Siana B., Spinrad H., Stern D.
<Astron. J., 141, 1 (2011)>
=2011AJ....141....1T 2011AJ....141....1T
ADC_Keywords: Galaxies, optical ; Galaxies, IR ; Photometry, infrared ;
X-ray sources
Keywords: cosmology: observations - galaxies: evolution -
galaxies: high-redshift - infrared: galaxies
Abstract:
We present Spitzer 16um imaging of the Great Observatories Origins
Deep Survey (GOODS) fields. We survey 150 arcmin2 in each of the two
GOODS fields (North and South), to an average 3σ depth of 40 and
65uJy, respectively. We detect ∼1300 sources in both fields combined.
We validate the photometry using the 3-24um spectral energy
distribution of stars in the fields compared to Spitzer spectroscopic
templates. Comparison with ISOCAM and AKARI observations in the same
fields shows reasonable agreement, though the uncertainties are large.
We provide a catalog of photometry, with sources cross-correlated with
available Spitzer, Chandra, and Hubble Space Telescope data. Galaxy
number counts show good agreement with previous results from ISOCAM
and AKARI with improved uncertainties.
Description:
Data were taken in two general observer Spitzer programs: GO-3661,
observing GOODS-South in Cycle 1, and GO-20599, observing GOODS-North
in Cycle 2. The 16µm fluxes were detected with the Spitzer peak-up
imaging (PUI) capability offered by the the Infrared Spectrometer
(IRS). The Si:As detector was similar to that used in the 24µm
channel of the MIPS instrument; in 10 minutes of observation, the PUI
achieved 5σ depths of ∼45µJy.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table12.dat 231 840 GOODS-N, Spitzer and ancillary data
(tables 1 and 2 of the paper)
table34.dat 231 476 GOODS-S, Spitzer and ancillary data
(tables 3 and 4 of the paper)
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See also:
II/261 : GOODS initial results (Giavalisco+, 2004)
J/AJ/126/539 : The Chandra Deep Fields North and South (Alexander+, 2003)
J/ApJS/179/19 : CDFS survey: 2 Ms source catalogs (Luo+, 2008)
Byte-by-byte Description of file: table*.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ID [0/839] Index number
6- 15 F10.6 deg RAdeg Right Ascension in decimal degrees (J2000)
17- 26 F10.6 deg DEdeg Declination in decimal degrees (J2000)
28- 29 I2 --- Cov Coverage in number of exposures (1)
31- 38 F8.2 uJy S3.6 Spitzer/IRAC 3.6 micron band flux density
40- 46 F7.2 uJy e_S3.6 The 1σ error in S3.6
48- 54 F7.2 uJy S4.5 Spitzer/IRAC 4.5 micron band flux density
56- 61 F6.2 uJy e_S4.5 The 1σ error in S4.5
63- 70 F8.2 uJy S5.8 Spitzer/IRAC 5.8 micron band flux density
72- 77 F6.2 uJy e_S5.8 The 1σ error in S5.8
79- 85 F7.2 uJy S8 Spitzer/IRAC 8.0 micron band flux density
87- 92 F6.2 uJy e_S8 The 1σ error in S8
94- 99 F6.1 uJy S16 Spitzer/IRS 16 micron band flux density
101-105 F5.1 uJy e_S16 The 1σ error in S16
107-112 F6.1 uJy S24 Spitzer/MIPS 24 micron band flux density
114-119 F6.2 uJy e_S24 The 1σ error in S24
121-128 F8.4 --- zsp ?=-99.0000 Spectroscopic redshift
130-131 I2 --- r_zsp Reference for zsp (2)
133 I1 --- X? [0/1] X-ray detected? 1=detected, 0=not detected
135-139 F5.2 aW/m2 FXs Soft X-ray band flux of Chandra detection (3)
140 A1 --- --- [0]
142-146 F5.2 aW/m2 FXh Hard X-ray band flux of Chandra detection (3)
147 A1 --- --- [0]
149 I1 --- S/G [0/2] Star flag: 1=star, 0=galaxy
2=confusion star and neighboring galaxy
151-155 F5.2 --- conc ? 16µm concentration index (4)
157 I1 --- N8 Number of 8µm sources within 4" radius
159 I1 --- N16 Number of 16µm sources within 5.4" radius
161-162 I2 --- Q [1/31] Quality flag (5)
164 I1 --- E [0/1] Extended flag (1=extended, 0=not extended)
166-172 F7.2 mag Bmag ?=-999.00 Giavalisco et al. 2004, Cat. II/261
B band magnitude
174-180 F7.2 mag Vmag ?=-999.00 Giavalisco et al. 2004, Cat. II/261
V band magnitude
182-188 F7.2 mag Imag ?=-999.00 Giavalisco et al. 2004, Cat. II/261
I band magnitude
190-196 F7.2 mag zmag ?=-999.00 Giavalisco et al. 2004, Cat. II/261
z band magnitude
198-204 F7.2 mag e_Bmag ?=-999.00 The 1σ error in Bmag
206-212 F7.2 mag e_Vmag ?=-999.00 The 1σ error in Vmag
214-220 F7.2 mag e_Imag ?=-999.00 The 1σ error in Imag
222-228 F7.2 mag e_zmag ?=-999.00 The 1σ error in zmag
230-231 I2 --- NI Number of I band sources with 1" radius
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Note (1): 30 seconds integration per exposure for GOODS-N (table12),
60 seconds integration per exposure for GOODS-S (table34).
Note (2): Reference for zspec as follows:
-1 = no redshift;
1 = LeFevre et al. (2004, Cat. J/A+A/428/1043)
2 = Szokoly et al. (2004, Cat. J/ApJS/155/271)
3 = Croom et al. (2001, Cat. J/MNRAS/328/150)
9 = K20 Survey, Mignoli et al. (2005, Cat. J/A+A/437/883)
10 = Cohen et al. (2000, Cat. J/ApJ/538/29), Cohen (2001, Cat. J/AJ/121/2895)
11 = Strolger et al. (2004, Cat. J/ApJ/613/200)
12 = Dawson et al. (2001, Cat. J/AJ/122/598)
21 = Wirth et al. (2004, Cat. J/AJ/127/3121)
30 = Vanzella et al. (2008, Cat. J/A+A/434/53)
41 = Popesso et al. (2009A&A...494..443P 2009A&A...494..443P),
Balestra et al. (2010, Cat. J/A+A/512/A12)
42 = Chapman et al. (2005, Cat. J/ApJ/622/772),
Swinbank et al. (2004ApJ...617...64S 2004ApJ...617...64S)
45 = Pope et al. (2008ApJ...675.1171P 2008ApJ...675.1171P), Murphy et al. (2009ApJ...698.1380M 2009ApJ...698.1380M),
Spitzer IRS redshifts
51 = Treu et al. (2005, Cat. J/ApJ/633/174)
61 = Reddy et al. (2006, Cat. J/ApJ/653/1004)
62 = Doherty et al. (2005, Cat. J/MNRAS/361/525)
70 = Ravikumar et al. (2007, Cat. J/A+A/465/1099)
72 = Stern et al. (in prep)
73 = Daddi et al. (2008ApJ...673L..21D 2008ApJ...673L..21D)
81 = Barger et al. (2008, cat. J/ApJ/689/687)
82 = Kriek et al. (2008ApJ...677..219K 2008ApJ...677..219K)
Note (3): From Alexander et al. 2003, Cat. J/AJ/126/539 for table12,
from Luo et al. 2003, Cat. J/ApJS/179/19 for table34.
Note (4): Ratio of aperture flux in 6:2 pixel radii. Blanks indicate NaN values.
Objects which are point sources should fall in the range of 2-3.
Note (5): Quality Flag is assigned Bitwise (Q=Σ2b), where b means:
0 = included in catalog
1 = more than one 16 micron source within 5.4 arcsec; possible confusion
2 = source concentration differs from that expected for point source
3 = S/N ratio <5, but coverage indicates it should be higher
4 = sources with coverage of two exposures instead of three
For example, an object with a flag value of 19 would indicate that
Bits 0, 1, and 4 had been set because: (Bit 0) the object was included
in the catalog; (Bit 1) the measurement of the object may suffer from
confusion due to a close 16um neighbor; and (Bit 4) the object had a
coverage of only two exposures.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 18-Jul-2012