2009ApJ...707.1201W

Query : 2009ApJ...707.1201W

2009ApJ...707.1201W - Astrophys. J., 707, 1201-1216 (2009/December-3)

The Large Apex BOlometer Camera survey of the Extended Chandra Deep Field South.

WEISS A., KOVACS A., COPPIN K., GREVE T.R., WALTER F., SMAIL I., DUNLOP J.S., KNUDSEN K.K., ALEXANDER D.M., BERTOLDI F., BRANDT W.N., CHAPMAN S.C., COX P., DANNERBAUER H., DE BREUCK C., GAWISER E., IVISON R.J., LUTZ D., MENTEN K.M., KOEKEMOER A.M., KREYSA E., KURCZYNSKI P., RIX H.-W., SCHINNERER E. and VAN DER WERF P.P.

Abstract (from CDS):

We present a sensitive 870 µm survey of the Extended Chandra Deep Field South (ECDFS) combining 310 hr of observing time with the Large Apex BOlometer Camera (LABOCA) on the APEX telescope. The LABOCA ECDFS Submillimetre Survey (LESS) covers the full 30'x30' field size of the ECDFS and has a uniform noise level of σ_870 µm_~ 1.2 mJy/beam. LESS is thus the largest contiguous deep submillimeter survey undertaken to date. The noise properties of our map show clear evidence that we are beginning to be affected by confusion noise. We present a catalog of 126 submillimeter galaxies (SMGs) detected with a significance level above 3.7σ, at which level we expect five false detections given our map area of 1260 arcmin2. The ECDFS exhibits a deficit of bright SMGs relative to previously studied blank fields but not of normal star-forming galaxies that dominate the extragalactic background light (EBL). This is in line with the underdensities observed for optically defined high redshift source populations in the ECDFS (BzKs, DRGs, optically bright active galactic nucleus, and massive K-band-selected galaxies). The differential source counts in the full field are well described by a power law with a slope of α = -3.2, comparable to the results from other fields. We show that the shape of the source counts is not uniform across the field. Instead, it steepens in regions with low SMG density. Towards the highest overdensities we measure a source-count shape consistent with previous surveys. The integrated 870 µm flux densities of our source-count models down to S_870 µm_= 0.5 mJy account for >65% of the estimated EBL from COBE measurements. We have investigated the clustering of SMGs in the ECDFS by means of a two-point correlation function and find evidence for strong clustering on angular scales <1' with a significance of 3.4σ. Assuming a power-law dependence for the correlation function and a typical redshift distribution for the SMGs we derive a characteristic angular clustering scale of θ0= 14''±7'' and a spatial correlation length of r0 = 13±6 h.–1 Mpc.

Abstract Copyright: ∼

Journal keyword(s): cosmology: observations - galaxies: evolution - galaxies: high-redshift - galaxies: starburst - submillimeter - surveys

VizieR on-line data: <Available at CDS (J/ApJ/707/1201): table1.dat>

Nomenclature: Table 1: LESS JHHMMSS.s+DDMMSS N=126.

Simbad objects: 146

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Number of rows : 146
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 QSO B0104-408 QSO 01 06 45.10796439 -40 34 19.9603733   18.60 19.0 19.25   ~ 130 0
2 ALESS J033110.07-275236.7 G 03 31 10.07 -27 52 36.7           ~ 12 0
3 LESS J033110.3-274503 G 03 31 10.28 -27 45 03.1           ~ 3 0
4 LESS J033110.4-273714 PaG 03 31 10.35 -27 37 14.8           ~ 4 0
5 LESS J033110.5-275233 PaG 03 31 10.47 -27 52 33.2           ~ 6 0
6 LESS J033110.8-275607 G 03 31 10.84 -27 56 07.2           ~ 3 0
7 LESS J033111.3-280006 G 03 31 11.32 -28 00 06.2           ~ 3 0
8 LESS J033114.9-274844 G 03 31 14.90 -27 48 44.3           ~ 3 0
9 LESS J033115.8-275313 G 03 31 15.4680 -27 53 11.450           ~ 3 0
10 ALESS J033121.92-274941.4 G 03 31 21.92 -27 49 41.4           ~ 12 0
11 LESS J033122.6-275417 PaG 03 31 22.64 -27 54 17.2           ~ 4 0
12 ALESS J033122.66-275417.2 G 03 31 22.66 -27 54 17.2           ~ 13 0
13 LESS J033124.5-275040 PaG 03 31 24.45 -27 50 40.9           ~ 4 1
14 LESS J033126.8-275554 PaG 03 31 26.83 -27 55 54.6           ~ 8 0
15 ALESS J033127.19-275551.3 G 03 31 27.19 -27 55 51.3 25.14 23.86 23.60 23.42 23.38 ~ 20 0
16 ATCDFS J033127.51-274440.1 G 03 31 27.57 -27 44 39.7 25.94 24.18 23.73 23.39 22.79 ~ 17 0
17 [CCC2011] 2 G 03 31 27.60 -27 39 28.0 26.42       24.09 ~ 10 0
18 SIMPLE 18523 G 03 31 28.87 -27 56 07.8           ~ 5 0
19 ALESS J033128.91-275909.0 G 03 31 28.91 -27 59 09.0           ~ 16 0
20 ALESS J033129.92-275722.7 G 03 31 29.90 -27 57 22.7       26.11 24.61 ~ 27 0
21 LESS J033130.9-275150 PaG 03 31 30.85 -27 51 50.9           ~ 3 1
22 [BII2011] MIPS J033131.2040-273238.469 G 03 31 31.2272 -27 32 39.111 25.06 24.42 24.32 24.34 24.58 ~ 9 0
23 LESS J033134.3-275934 GrG 03 31 34.26 -27 59 34.3           ~ 3 0
24 LESS J033135.3-274033 G 03 31 35.25 -27 40 33.7           ~ 3 0
25 LESS J033136.0-275439 G 03 31 36.01 -27 54 39.2           ~ 5 0
26 LESS J033136.9-275456 G 03 31 36.90 -27 54 56.1           ~ 4 0
27 ALESS J033138.14-274343.4 G 03 31 38.14 -27 43 43.4           ~ 11 0
28 [MBR2003] CDFS-H 692 G 03 31 39.55 -27 41 19.7 24.83 23.77 23.44 23.28 22.94 ~ 39 0
29 LESS J033140.1-275631 G 03 31 40.16 -27 56 22.6         24.51 ~ 11 0
30 [DSS2017] 172 AGN 03 31 40.99 -27 44 35.2 24.34 23.70 23.38 22.90 22.19 ~ 20 0
31 LESS J033142.2-274834 PaG 03 31 42.23 -27 48 34.4           ~ 3 0
32 [HKS2013] ALESS 070.1 G 03 31 44.03 -27 38 35.8 25.19 23.87 23.78 23.41 23.61 ~ 29 0
33 ALESS J033145.03-273436.7 G 03 31 45.0493 -27 34 37.060 25.44 25.17 24.77 24.15 23.91 ~ 16 0
34 ALESS J033145.06-274427.3 G 03 31 45.06 -27 44 27.3           ~ 12 0
35 LESS J033146.0-274621 G 03 31 46.02 -27 46 21.2           ~ 4 0
36 ALESS J033146.92-273239.3 G 03 31 46.9496 -27 32 39.547     26.20 25.60   ~ 17 0
37 [CCC2011] 29 G 03 31 48.94 -28 02 13.6           ~ 9 0
38 LESS J033149.7-273432 G 03 31 49.73 -27 34 32.7           ~ 3 0
39 ALESS J033149.79-275740.8 G 03 31 49.7741 -27 57 40.439           ~ 13 0
40 LESS J033149.8-275332 G 03 31 49.78 -27 53 32.9           ~ 3 0
41 LESS J033150.8-274438 PaG 03 31 50.81 -27 44 38.5           ~ 26 0
42 ALESS J033151.11-274437.3 AGN 03 31 51.11 -27 44 37.6 25.31 24.52 24.21 23.66 22.7896 ~ 46 0
43 [SYW2010] AzTEC/GS15 G 03 31 51.6370 -27 45 52.262 27.28 26.70 26.20 25.58   ~ 10 0
44 [LBX2017] 42 Sy2 03 31 51.94 -27 53 27.2 26.57 25.14 25.38 24.74   ~ 59 0
45 [HKS2013] ALESS 014.1 G 03 31 52.4870 -28 03 18.934     26.71     ~ 20 0
46 SIMPLE 45144 G 03 31 53.1189 -27 39 38.555           ~ 5 0
47 LESS J033154.2-275109 PaG 03 31 54.22 -27 51 09.8           ~ 19 0
48 LESS J033154.4-274525 PaG 03 31 54.42 -27 45 25.5           ~ 4 0
49 ALESS J033154.50-275105.6 AGN 03 31 54.50 -27 51 05.6 26.42 25.10 25.03 24.48 24.22 ~ 36 0
50 [MBF2013] 244 G 03 31 54.88 -27 53 41.3 26.78 25.42 25.10 24.98 24.27 ~ 14 0
51 LESS J033155.2-275345 GrG 03 31 55.19 -27 53 45.3           ~ 7 0
52 [HKS2013] ALESS 025.1 G 03 31 56.8845 -27 59 39.653 26.78 26.02 25.46 25.04 24.45 ~ 13 0
53 LESS J033157.2-275633 G 03 31 57.23 -27 56 33.2           ~ 3 0
54 LESS J033159.1-275435 G 03 31 59.12 -27 54 35.5           ~ 3 0
55 LESS J033201.0-280025 G 03 32 00.9468 -28 00 26.467   26.53 25.52 24.29 24.17 ~ 4 0
56 LESS J033203.6-273605 PaG 03 32 03.59 -27 36 05.0           ~ 3 0
57 ALESS J033205.12-274652.1 AGN 03 32 04.889 -27 46 47.70 26.11 25.041 25.34 26.10 23.974 ~ 50 0
58 LESS J033205.1-273108 G 03 32 05.07 -27 31 08.8           ~ 3 0
59 LESS J033207.6-275123 G 03 32 07.3105 -27 51 20.849 25.15 24.47 24.26 23.94 23.27 ~ 9 0
60 LESS J033208.1-275818 PaG 03 32 08.10 -27 58 18.7           ~ 10 0
61 ALESS J033208.26-275814.2 G 03 32 08.26 -27 58 14.2 27.01 27.04 26.39 26.79   ~ 17 0
62 ALESS J033209.61-274107.7 G 03 32 09.6084 -27 41 06.983 26.87 26.32 26.61 25.87   ~ 14 0
63 ALESS J033211.34-275211.9 G 03 32 11.33 -27 52 12.0           ~ 30 0
64 LESS J033212.1-280508 PaG 03 32 12.11 -28 05 08.5           ~ 6 0
65 ALESS J033213.85-275600.3 AGN 03 32 13.846 -27 56 00.09 27.86 28.22 27.73 25.6 25.90 ~ 56 0
66 ALESS J033217.64-275230.3 G 03 32 17.6163 -27 52 28.483 24.98 23.7434 23.67 23.06 21.9383 ~ 28 0
67 [SYW2010] AzTEC/GS45 G 03 32 18.6870 -27 37 43.145 25.04 24.49 24.01 23.29 21.79 ~ 6 0
68 ALESS J033219.02-275219.4 G 03 32 19.06 -27 52 14.8           ~ 25 0
69 ALESS J033221.60-275624.0 G 03 32 21.60 -27 56 24.0 26.37 22.010 24.84 24.261 23.61 ~ 23 0
70 [LBX2017] 453 AGN 03 32 25.25 -27 52 30.7   27.15 27.00 27.01 26.581 ~ 41 0
71 LESS J033225.8-273306 G 03 32 25.79 -27 33 06.7           ~ 3 0
72 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 2088 1
73 ALESS J033229.29-275619.7 QSO 03 32 29.2912 -27 56 19.465     26.76 25.82 25.1655 ~ 110 0
74 NAME Extended Chandra Deep Field South reg 03 32 30.0 -27 48 20           ~ 762 0
75 SIMPLE 14440 G 03 32 31.45 -27 58 51.5           ~ 5 0
76 ALESS J033233.33-273913.6 G 03 32 33.33 -27 39 13.6           ~ 11 0
77 LESS J033236.4-275845 G 03 32 36.42 -27 58 45.9           ~ 3 0
78 [DSS2017] 1914 G 03 32 36.5309 -27 34 53.363 26.55 25.55 25.09 24.44 23.45 ~ 7 0
79 LESS J033237.8-273202 G 03 32 38.0090 -27 31 59.927           ~ 4 0
80 NAME Hubble Ultra Deep Field reg 03 32 39.0 -27 47 29           ~ 1666 0
81 ALESS J033240.40-273758.1 EmG 03 32 40.048 -27 38 08.64 25.56 24.3636 24.03 23.327 21.91 ~ 29 0
82 LESS J033241.7-275846 G 03 32 41.74 -27 58 46.1           ~ 3 0
83 ALESS J033243.20-275514.3 AGN 03 32 43.1879 -27 55 14.295 26.14 24.85 24.52 24.42 24.2641 ~ 69 0
84 LESS J033243.3-275517 PaG 03 32 43.28 -27 55 17.9           ~ 32 0
85 LESS J033243.6-274644 G 03 32 43.58 -27 46 36.9           ~ 5 0
86 LESS J033243.6-273353 G 03 32 43.6418 -27 33 56.925 26.97 26.08 26.33     ~ 5 0
87 LESS J033243.7-273554 G 03 32 43.65 -27 35 54.1           ~ 3 0
88 [HKS2013] ALESS 061.1 G 03 32 45.87 -28 00 23.4           ~ 22 0
89 [SWM2014] GOODS-S 11763 AGN 03 32 46.83 -27 51 20.8 24.82 24.4861 24.07 24.202 23.595 ~ 44 0
90 AzTEC J033247.86-275419.3 G 03 32 47.9995 -27 54 16.497           ~ 13 0
91 LESS J033248.4-280023 G 03 32 48.44 -28 00 23.8           ~ 3 0
92 ALESS J033248.86-273113.3 G 03 32 48.8558 -27 31 12.868 26.98         ~ 19 0
93 ALESS J033248.99-274251.8 G 03 32 48.99 -27 42 51.8           ~ 15 0
94 LESS J033251.1-273143 GrG 03 32 51.09 -27 31 43.0           ~ 6 0
95 ALESS J033251.82-275533.6 G 03 32 51.82 -27 55 33.6           ~ 10 0
96 [HKS2013] ALESS 065.1 G 03 32 52.27 -27 35 26.3           ~ 24 0
97 ALESS J033254.00-273814.9 G 03 32 54.00 -27 38 14.9           ~ 13 0
98 LESS J033256.0-273317 G 03 32 55.99 -27 33 18.9 27.05 26.31 25.58 25.26   ~ 4 0
99 ALESS J033256.64-280325.2 G 03 32 56.64 -28 03 25.2           ~ 11 0
100 ALESS J033256.96-280100.7 G 03 32 56.9734 -28 01 01.204 26.57 25.95 24.94 24.00 22.91 ~ 19 0
101 LESS J033258.5-273803 G 03 32 58.46 -27 38 03.0           ~ 3 0
102 LESS J033302.2-274033 GrG 03 33 02.20 -27 40 33.6           ~ 3 0
103 LESS J033302.5-275643 PaG 03 33 02.50 -27 56 43.6           ~ 19 0
104 ALESS J033302.69-275642.8 G 03 33 02.69 -27 56 42.8 25.67 24.78 24.65 24.39 24.08 ~ 26 0
105 LESS J033302.9-274432 G 03 33 03.24 -27 44 28.3           ~ 4 0
106 ALESS J033303.82-274418.2 G 03 33 03.82 -27 44 18.2 27.66 26.89 26.67   24.36 ~ 13 0
107 LESS J033306.3-273327 PaG 03 33 06.29 -27 33 27.7           ~ 3 0
108 ALESS J033306.64-274802.4 G 03 33 06.6365 -27 48 01.919 28.17         ~ 13 0
109 ALESS J033307.59-275805.8 G 03 33 07.5902 -27 58 05.840           ~ 11 0
110 LESS J033308.5-280044 G 03 33 08.49 -28 00 42.8 25.39 25.05 24.69 24.25 23.28 ~ 13 0
111 ALESS J033308.71-280518.5 G 03 33 08.71 -28 05 18.5           ~ 8 0
112 ALESS J033309.15-274817.2 G 03 33 09.3454 -27 48 15.998           ~ 16 0
113 LESS J033310.2-275641 G 03 33 10.20 -27 56 41.5           ~ 3 0
114 [DSS2017] 1710 QSO 03 33 12.60 -27 55 51.6 21.92 20.82 20.62 20.40 19.99 ~ 29 0
115 LESS J033313.7-273803 G 03 33 13.65 -27 38 03.4           ~ 3 0
116 LESS J033314.3-275611 GrG 03 33 14.26 -27 56 11.2           ~ 7 0
117 ALESS J033314.41-275611.6 G 03 33 14.41 -27 56 11.6 28.44         ~ 18 0
118 LESS J033315.6-274523 G 03 33 15.4267 -27 45 24.430 26.46 24.90 24.08 23.37 22.22 ~ 15 0
119 [HSN2014] 66507 AGN 03 33 16.45 -27 50 40.0 21.25 19.64 19.11 18.60 18.02 ~ 36 0
120 ATCDFS9 J033316.75-280016.0 AGN 03 33 16.75 -28 00 16.0   26.25 25.66 25.53   ~ 18 0
121 LESS J033317.5-275121 G 03 33 17.53 -27 51 27.5 25.50 24.95 24.59 24.08 23.18 ~ 5 0
122 [HKS2013] ALESS 003.1 G 03 33 21.5113 -27 55 20.515           ~ 21 0
123 BLAST J033324-273432 G 03 33 25.17 -27 34 25.0 25.06 23.82 23.31 22.79 22.38 ~ 16 0
124 LESS J033325.4-273400 G 03 33 25.3661 -27 33 58.314           ~ 11 0
125 LESS J033328.1-274157 G 03 33 28.08 -27 41 57.0           ~ 3 0
126 LESS J033328.5-275655 G 03 33 28.5832 -27 56 54.376   26.77 25.99   24.60 ~ 10 0
127 LESS J033329.9-273441 G 03 33 29.93 -27 34 41.7           ~ 6 0
128 LESS J033330.9-275349 G 03 33 30.88 -27 53 49.3           ~ 3 0
129 [DSS2017] 9332 AGN 03 33 31.97 -27 54 10.3 21.03 21.18 21.13 20.79 20.64 ~ 36 0
130 ALESS J033332.34-275955.6 G 03 33 32.3411 -27 59 54.831           ~ 16 0
131 LESS J033333.3-273449 G 03 33 33.32 -27 34 49.3           ~ 3 0
132 LESS J033333.4-275930 PaG 03 33 33.36 -27 59 30.1           ~ 5 0
133 ALESS J033335.60-274023.0 G 03 33 35.5719 -27 40 22.963   26.93 26.24 25.98 24.97 ~ 12 0
134 LESS J033336.0-275347 PaG 03 33 36.04 -27 53 47.6   26.19 25.33 24.18 23.45 ~ 4 0
135 [BII2011] VLA J033336.7533-273249.574 G 03 33 36.7533 -27 32 49.574           ~ 7 0
136 ALESS J033336.90-275809.3 G 03 33 36.8866 -27 58 09.382           ~ 16 0
137 LESS J033336.8-274401 G 03 33 36.9881 -27 43 58.749   25.53 25.71 25.15 24.31 ~ 12 0
138 [MFK2008] J033340.11-273949.7 G 03 33 40.1122 -27 39 49.684 26.83 25.66 25.67 25.86 25.65 ~ 8 0
139 LESS J033344.4-280346 G 03 33 44.37 -28 03 46.1           ~ 3 0
140 ALESS J033349.70-274234.6 G 03 33 49.6663 -27 42 34.067           ~ 8 0
141 QSO J0403-3605 Bla 04 03 53.74990003 -36 05 01.9131880   17.04 17.17 16.67   ~ 285 1
142 QSO J0457-2324 QSO 04 57 03.1791422424 -23 24 52.021129572   18.85 18.5 16.56   ~ 396 1
143 V* V883 Ori Or* 05 38 18.1018261392 -07 02 26.017707120           F:I: 212 0
144 NGC 2071 RNe 05 47 10 +00 18.0           ~ 646 1
145 V* VY CMa s*r 07 22 58.3261352189 -25 46 03.194390594 12.01 10.068 8.691 7.938   M5Iae 1104 0
146 QSO J2322+1944 QSO 23 22 07.164 +19 44 22.98     18.29     ~ 74 0

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