2017A&A...608A..15B

Query : 2017A&A...608A..15B

2017A&A...608A..15B - Astronomy and Astrophysics, volume 608A, 15-15 (2017/12-1)

An ALMA survey of submillimeter galaxies in the COSMOS field: Multiwavelength counterparts and redshift distribution.

BRISBIN D., MIETTINEN O., ARAVENA M., SMOLCIC V., DELVECCHIO I., JIANG C., MAGNELLI B., ALBRECHT M., MUNOZ ARANCIBIA A., AUSSEL H., BARAN N., BERTOLDI F., BETHERMIN M., CAPAK P., CASEY C.M., CIVANO F., HAYWARD C.C., ILBERT O., KARIM A., LE FEVRE O., MARCHESI S., McCRACKEN H.J., NAVARRETE F., NOVAK M., RIECHERS D., PADILLA N., SALVATO M., SCOTT K., SCHINNERER E., SHETH K. and TASCA L.

Abstract (from CDS):

We carried out targeted ALMA observations of 129 fields in the COSMOS region at 1.25mm, detecting 152 galaxies at S/N≥5 with an average continuum RMS of 150 µJy. These fields represent a S/N-limited sample of AzTEC/ASTE sources with 1.1mm S/N≥4 over an area of 0.72 square degrees. Given ALMA's fine resolution and the exceptional spectroscopic and multiwavelength photometric data available in COSMOS, this survey allows us unprecedented power in identifying submillimeter galaxy counterparts and determining their redshifts through spectroscopic or photometric means. In addition to 30 sources with prior spectroscopic redshifts, we identified redshifts for 113 galaxies through photometric methods and an additional nine sources with lower limits, which allowed a statistically robust determination of the redshift distribution. We have resolved 33 AzTEC sources into multi-component systems and our redshifts suggest that nine are likely to be physically associated. Our overall redshift distribution peaks at z∼2.0 with a high-redshift tail skewing the median redshift to z~=2.48±0.05. We find that brighter millimeter sources are preferentially found at higher redshifts. Our faintestsources, with S1.25mm<1.25mJy, have a median redshift of z~=2.18±0.09, while the brightest sources, S1.25mm>1.8mJy, have a median redshift of z~=3.08±0.17. After accounting for spectral energy distribution shape and selection effects, these results are consistent with several previous submillimeter galaxy surveys, and moreover, support the conclusion that the submillimeter galaxy redshift distribution is sensitive to survey depth.

Abstract Copyright: © ESO, 2017

Journal keyword(s): galaxies: distances and redshifts - galaxies: evolution - galaxies: statistics - galaxies: high-redshift - catalogs - catalogs

VizieR on-line data: <Available at CDS (J/A+A/608/A15): tablea2.dat>

Simbad objects: 148

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Number of rows : 148
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 SPT-S J010312-4538.8 G 01 03 11.570 -45 38 51.90           ~ 19 0
2 SPT-S J011308-4617.7 G 01 13 09.030 -46 17 56.90           ~ 19 0
3 SPT-S J024307-4915.5 G 02 43 09.070 -49 15 33.00           ~ 17 0
4 NAME Extended Chandra Deep Field South reg 03 32 30.0 -27 48 20           ~ 762 0
5 SPT-S J034510-4725.6 G 03 45 10.970 -47 25 40.90           ~ 20 0
6 ACT-S J034640-520505 G 03 46 41.190 -52 05 05.50           ~ 41 0
7 SPT-S J041839-4751.8 G 04 18 39.270 -47 51 50.10           ~ 44 0
8 SPT-S J044143-4605.3 G 04 41 44.130 -46 05 29.50           ~ 23 0
9 SPT-S J045247-5018.6 G 04 52 45.510 -50 18 40.60           ~ 10 0
10 SPT-S J045912-5942.4 G 04 59 12.620 -59 42 21.20           ~ 16 0
11 ACT-S J052903-543650 G 05 29 03.370 -54 36 40.30           ~ 19 0
12 ACT-S J053250-504709 G 05 32 51.270 -50 47 09.50           ~ 19 0
13 ACT-S J055139-505800 G 05 51 38.970 -50 58 03.30           ~ 15 0
14 [JHS2010] 1 smm 06 58 37.31 -55 57 01.5           ~ 11 2
15 [CRR2012] HLS J091828.6+514223 G 09 18 28.60 +51 42 23.3           ~ 40 0
16 AzTEC J095837.91+021408.3 G 09 58 37.91 +02 14 08.3           ~ 3 0
17 AS2COS 0012.1 smm 09 58 37.96632904630 +02 14 08.3726560282           ~ 4 0
18 AzTEC J095840.29+020514.7 G 09 58 40.29 +02 05 14.7   24.7 23.7     ~ 5 0
19 AzTEC J095845.11+021442.1 G 09 58 45.11 +02 14 42.1   25.7 24.9     ~ 4 0
20 AzTEC J095849.35+021253.5 G 09 58 49.35 +02 12 53.5           ~ 3 0
21 AzTEC J095854.11+021650.5 G 09 58 54.11 +02 16 50.5           ~ 3 0
22 AzTEC J095902.73+015942.0 G 09 59 02.73 +01 59 42.0           ~ 3 0
23 AzTEC J095904.93+022154.6 G 09 59 05.05 +02 21 56.4   27.7 25.5     ~ 5 0
24 AzTEC J095914.96+022957.7 G 09 59 14.96 +02 29 57.7   23.7 23.2     ~ 5 0
25 AzTEC J095915.34+020748.3 G 09 59 15.34 +02 07 48.3           ~ 4 0
26 AzTEC J095918.38+020105.9 G 09 59 18.38 +02 01 05.9   26.4 25.9     ~ 4 0
27 AzTEC J095918.52+021035.8 G 09 59 18.52 +02 10 35.8           ~ 3 0
28 AzTEC J095920.75+023111.3 G 09 59 20.75 +02 31 11.3           ~ 2 0
29 AzTEC J095921.55+022233.5 G 09 59 21.55 +02 22 33.5           ~ 5 0
30 COSMOSLABOCA 40 smm 09 59 25.909 +02 19 56.40           ~ 2 0
31 AzTEC J095925.93+022018.3 G 09 59 25.93 +02 20 18.3   27.6 26.8     ~ 4 0
32 AzTEC J095929.62+021241.6 G 09 59 29.62 +02 12 41.6           ~ 5 0
33 AS2COS 0155.1 G 09 59 31.700 +02 30 43.96           ~ 19 0
34 AzTEC J095933.13+020833.2 G 09 59 33.13 +02 08 33.2           ~ 5 0
35 AzTEC J095934.76+021927.6 G 09 59 34.76 +02 19 27.6           ~ 3 0
36 AzTEC J095935.00+015756.7 G 09 59 35.00 +01 57 56.7           ~ 2 0
37 AzTEC J095937.16+020656.5 G 09 59 37.16 +02 06 56.5   26.8 26.2     ~ 5 0
38 AzTEC J095937.37+020423.9 G 09 59 37.37 +02 04 23.9           ~ 4 0
39 AzTEC J095939.56+022238.3 G 09 59 39.56 +02 22 38.3           ~ 4 0
40 AzTEC J095941.18+020105.6 G 09 59 41.18 +02 01 05.6   24.7 23.8     ~ 5 0
41 AzTEC J095942.76+015511.7 G 09 59 42.76 +01 55 11.7           ~ 3 0
42 AS2COS 0023.1 G 09 59 42.860 +02 29 38.20           ~ 64 0
43 AzTEC J095943.22+022136.1 G 09 59 43.22 +02 21 36.1   24.7 24.1     ~ 9 0
44 AzTEC J095943.70+021348.3 G 09 59 43.70 +02 13 48.3   27.4 27.0     ~ 5 0
45 AzTEC J095945.58+023018.5 G 09 59 45.15 +02 30 21.1           ~ 4 0
46 AzTEC J095946.66+023541.9 smm 09 59 46.66 +02 35 41.9   26.6 26.1     ~ 4 0
47 AzTEC J095950.02+015324.0 G 09 59 50.02 +01 53 24.0   23.8 22.9     ~ 5 0
48 AzTEC J095953.83+021847.9 G 09 59 52.950 +02 18 49.13           ~ 7 0
49 AS2COS 0006.1 AGN 09 59 57.290 +02 27 30.54   27.5 26.8     ~ 25 0
50 AzTEC J095958.34+021324.4 G 09 59 58.34 +02 13 24.4           ~ 2 0
51 COSMOSLABOCA 73 smm 09 59 59.0 +02 34 40           ~ 2 0
52 AS2COS 0028.1 smm 09 59 59.33082066132 +02 34 40.9816630392           ~ 23 0
53 AzTEC J095959.49+020633.1 G 09 59 59.96 +02 06 33.1           ~ 11 0
54 AzTEC J100003.58+020206.1 G 10 00 03.73 +02 02 06.4           ~ 4 0
55 AzTEC J100005.19+015520.0 G 10 00 05.19 +01 55 20.0           ~ 3 0
56 ACS-GC 20040645 AGN 10 00 06.11 +01 52 39.6   23.0744 22.6541   22.719 ~ 29 0
57 AS2COS 0072.1 G 10 00 06.490 +02 38 37.40           ~ 12 0
58 ACS-GC 20150633 AGN 10 00 06.57 +02 32 59.7   24.570 23.794     ~ 21 0
59 AzTEC J100006.98+015958.9 G 10 00 06.98 +01 59 58.9           ~ 5 0
60 AzTEC J100007.77+021151.6 G 10 00 07.8 +02 11 49           ~ 6 0
61 AS2COS 0001.1 G 10 00 08.03880890735 +02 26 12.2927690890           ~ 26 0
62 [AWA2011] AzTEC/C35 smm 10 00 08.37 +02 20 24.3   27.3 26.4     ~ 5 0
63 AzTEC 11 PaG 10 00 08.91 +02 40 10.2           ~ 16 0
64 [CCC2013] SMM J100010.2+022221 smm 10 00 10.41 +02 22 20.9           ~ 3 0
65 AzTEC J100010.94+015309.3 G 10 00 10.94 +01 53 09.3   25.3 24.4     ~ 5 0
66 AzTEC J100012.96+020124.1 G 10 00 12.6 +02 01 25           ~ 6 0
67 AzTEC J100012.89+023435.7 AGN 10 00 12.92 +02 34 34.8 27.58   27.55 26.70 26.87 ~ 19 0
68 AzTEC J100013.21+021207.0 G 10 00 13.21 +02 12 07.0     26.2     ~ 5 0
69 COSMOSLABOCA 9S smm 10 00 13.829 +01 56 38.64           ~ 2 0
70 AzTEC J100014.21+015636.1 G 10 00 14.21 +01 56 36.1           ~ 4 0
71 AzTEC J100014.84+020532.5 G 10 00 14.84 +02 05 32.5           ~ 4 0
72 AzTEC J100015.77+021545.1 smm 10 00 15.7 +02 15 49           ~ 16 0
73 AzTEC J100018.36+021242.9 G 10 00 18.36 +02 12 42.9   24.4 23.7     ~ 4 0
74 NAME AK03 EmG 10 00 18.82 +02 28 14.2   27.409 26.901     ~ 11 0
75 AS2COS 0004.1 rG 10 00 19.750 +02 32 04.29     25.3     ~ 38 0
76 AzTEC J100020.47+014500.6 G 10 00 20.47 +01 45 00.6   27.1 26.4     ~ 4 0
77 AS2COS 0059.1 AGN 10 00 20.690 +02 35 20.37           ~ 105 0
78 AzTEC J100022.62+015145.4 G 10 00 22.62 +01 51 45.4   27.3 26.2     ~ 4 0
79 AS2COS 0010.1 G 10 00 23.65 +02 21 55.3 23.52 22.48 21.87     ~ 18 0
80 AzTEC J100024.06+022000.6 smm 10 00 24.06 +02 20 00.6           ~ 8 0
81 [CCC2013] 850.15 smm 10 00 25.23 +02 26 08.0           ~ 6 0
82 AzTEC J100026.04+020314.9 G 10 00 26.04 +02 03 14.9   27.7 26.3     ~ 4 0
83 AzTEC J100026.68+023128.1 smm 10 00 26.68 +02 31 28.1           ~ 6 0
84 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2975 0
85 AzTEC J100030.40+023712.2 G 10 00 30.40 +02 37 12.2   24.2 23.4     ~ 6 0
86 AS2COS 0007.1 AGN 10 00 33.36182 +02 26 01.4980           ~ 17 0
87 AzTEC J100033.80+014900.2 G 10 00 33.80 +01 49 00.2           ~ 2 0
88 AS2COS 0013.1 G 10 00 35.300 +02 43 53.27   26.3 25.4     ~ 19 0
89 AzTEC J100038.72+023843.8 smm 10 00 38.72 +02 38 43.8           ~ 8 0
90 AzTEC J100040.19+015923.7 G 10 00 40.19 +01 59 23.7           ~ 3 0
91 AzTEC J100042.99+020518.4 G 10 00 42.99 +02 05 18.4   27.9       ~ 5 0
92 AS2COS 0053.1 G 10 00 43.1770000 +02 05 19.040280           ~ 7 0
93 AzTEC J100055.19+023432.8 G 10 00 55.19 +02 34 32.8           ~ 17 0
94 AzTEC J100057.20+022008.7 G 10 00 57.2 +02 20 13           ~ 15 0
95 AzTEC J100100.37+023756.3 G 10 01 00.37 +02 37 56.3           ~ 4 0
96 AzTEC J100103.62+022856.8 G 10 01 03.62 +02 28 56.8           ~ 3 0
97 [CCC2013] 850.146 smm 10 01 05.00 +02 26 32.7           ~ 6 0
98 [AWA2011] AzTEC/C74 smm 10 01 05.64 +02 21 39.6           ~ 3 0
99 AzTEC J100109.03+021726.0 G 10 01 09.03 +02 17 26.0   25.6 24.2     ~ 4 0
100 AzTEC J100109.63+020348.3 G 10 01 09.8 +02 03 46     27.2     ~ 7 0
101 AzTEC J100111.63+022838.3 G 10 01 11.63 +02 28 38.3   26.6 25.7     ~ 5 0
102 AzTEC J100114.46+022702.5 G 10 01 14.46 +02 27 02.5   25.9 25.0     ~ 5 0
103 AzTEC J100114.61+023511.9 G 10 01 14.61 +02 35 11.9   26.9 26.1     ~ 5 0
104 AzTEC J100116.05+023614.3 G 10 01 16.15 +02 36 06.9           ~ 4 0
105 AzTEC J100118.61+020941.7 G 10 01 18.61 +02 09 41.7   25.1 23.7     ~ 5 0
106 AzTEC J100119.68+023442.0 G 10 01 19.68 +02 34 42.0     27.2     ~ 5 0
107 AzTEC J100121.82+023121.3 G 10 01 21.82 +02 31 21.3           ~ 4 0
108 AzTEC J100122.02+015654.3 G 10 01 22.02 +01 56 54.3   26.0 25.2     ~ 7 0
109 AzTEC J100122.65+021211.8 G 10 01 22.65 +02 12 11.8   27.8 26.9     ~ 4 0
110 AzTEC J100123.24+022002.7 G 10 01 23.24 +02 20 02.7           ~ 4 0
111 AzTEC J100124.43+015615.1 G 10 01 24.43 +01 56 15.1   27.3       ~ 4 0
112 AzTEC J100125.46+023524.3 G 10 01 25.46 +02 35 24.3   25.1 24.4     ~ 5 0
113 AzTEC J100125.89+015744.6 G 10 01 25.89 +01 57 44.6   26.7 25.4     ~ 4 0
114 AzTEC J100126.84+020003.3 G 10 01 26.84 +02 00 03.3           ~ 4 0
115 NAME Vd-17871 EmG 10 01 27.080 +02 08 55.90     26.74 25.44 25.02 ~ 20 0
116 AzTEC J100128.29+022129.7 G 10 01 28.29 +02 21 29.7           ~ 3 0
117 AzTEC J100128.61+022347.4 G 10 01 28.61 +02 23 47.4           ~ 4 0
118 AzTEC J100130.23+020217.6 G 10 01 30.23 +02 02 17.6           ~ 5 0
119 AzTEC J100131.67+022509.0 G 10 01 31.67 +02 25 09.0           ~ 5 0
120 AzTEC J100131.83+015403.3 G 10 01 31.83 +01 54 03.3           ~ 3 0
121 AzTEC J100132.02+021137.0 G 10 01 32.02 +02 11 37.0   27.8 26.0     ~ 5 0
122 AzTEC J100132.27+023214.4 G 10 01 32.27 +02 32 14.4           ~ 5 0
123 AzTEC J100135.64+021650.2 G 10 01 35.64 +02 16 50.2           ~ 2 0
124 AS2COS 0098.1 G 10 01 36.811 +02 11 09.66 26.71 26.16 25.23 24.93 24.60 ~ 8 0
125 AzTEC J100136.87+021103.0 G 10 01 36.87 +02 11 03.0   26.4 25.3     ~ 5 0
126 AzTEC J100138.07+020908.9 G 10 01 38.07 +02 09 08.9           ~ 3 0
127 AzTEC J100139.64+022345.2 G 10 01 39.64 +02 23 45.2           ~ 4 0
128 AzTEC J100139.94+023015.0 G 10 01 39.94 +02 30 15.0           ~ 2 0
129 AzTEC J100141.28+020357.1 G 10 01 41.02 +02 04 04.8   25.9 25.8     ~ 7 0
130 AS2COS 0011.1 smm 10 01 41.75616752991 +02 27 12.8979278618           ~ 7 0
131 AzTEC J100142.65+021833.1 G 10 01 42.65 +02 18 33.1           ~ 6 0
132 AzTEC J100147.43+022455.9 G 10 01 47.43 +02 24 55.9           ~ 2 0
133 AzTEC J100148.08+022129.3 G 10 01 48.08 +02 21 29.3   24.2 23.5     ~ 4 0
134 AzTEC J100156.23+022106.3 G 10 01 56.23 +02 21 06.3   25.1 24.3     ~ 6 0
135 AzTEC J100159.48+022239.4 G 10 01 59.48 +02 22 39.4           ~ 4 0
136 AzTEC J100159.82+020459.8 G 10 01 59.82 +02 04 59.8   25.7 24.9     ~ 5 0
137 AzTEC J100200.88+021648.0 G 10 02 00.88 +02 16 48.0           ~ 3 0
138 AzTEC J100205.50+021700.1 G 10 02 05.50 +02 17 00.1           ~ 4 0
139 AzTEC J100214.84+021944.9 G 10 02 14.84 +02 19 44.9           ~ 2 0
140 NAME SMM J123711+622212 AGN 12 37 11.92 +62 22 12.1   27.1786 25.185   24.4196 ~ 206 0
141 NAME G15.v2.779 G 14 24 13.9 +02 23 04           ~ 52 0
142 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2961 4
143 NAME HFLS 3 G 17 06 47.8 +58 46 23           ~ 137 0
144 SPT-S J210328-6032.6 G 21 03 31.550 -60 32 46.40           ~ 17 0
145 SPT-S J213242-5802.9 G 21 32 43.540 -58 02 54.00           ~ 26 0
146 NAME Eyelash LeG 21 35 11.60 -01 02 52.0           ~ 228 0
147 SPT-S J214654-5507.8 G 21 46 54.130 -55 07 52.10           ~ 20 0
148 SPT-S J214720-5035.9 G 21 47 19.620 -50 35 59.00           ~ 19 0

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