2013MNRAS.436.1919C

Query : 2013MNRAS.436.1919C

2013MNRAS.436.1919C - Mon. Not. R. Astron. Soc., 436, 1919-1954 (2013/December-2)

Characterization of Scuba-2 450µm and 850µm selected galaxies in the COSMOS field.

CASEY C.M., CHEN C.-C., COWIE L.L., BARGER A.J., CAPAK P., ILBERT O., KOSS M., LEE N., LE FLOC'H E., SANDERS D.B. and WILLIAMS J.P.

Abstract (from CDS):

We present deep 450µm and 850µm observations of a large, uniformly covered 394 arcmin2 area in the Cosmic Evolution Survey (COSMOS) field obtained with the Scuba-2 instrument on the James Clerk Maxwell Telescope (JCMT). We achieve root-mean-square noise values of σ450 = 4.13mJy and σ850 = 0.80mJy. The differential and cumulative number counts are presented and compared to similar previous works. Individual point sources are identified at >3.6σ significance, a threshold corresponding to a 3-5 percent sample contamination rate. We identify 78 sources at 450µm and 99 at 850µm, with flux densities S450 = 13-37mJy and S850 = 2-16mJy. Only 62-76 percent of 450µm sources are 850µm detected and 61-81 percent of 850µm sources are 450µm detected. The positional uncertainties at 450µm are small (1-2.5 arcsec) and therefore allow a precise identification of multiwavelength counterparts without reliance on detection at 24µm or radio wavelengths; we find that only 44 percent of 450µm sources and 60 percent of 850µm sources have 24µm or radio counterparts. 450µm selected galaxies peak at <z> = 1.95 ± 0.19 and 850µm selected galaxies peak at <z> = 2.16±0.11. The two samples occupy similar parameter space in redshift and luminosity, while their median SED peak wavelengths differ by ∼ 20-50µm (translating to ΔTdust = 8-12K, where 450µm selected galaxies are warmer). The similarities of the 450µm and 850µm populations, yet lack of direct overlap between them, suggests that submillimetre surveys conducted at any single far-infrared wavelength will be significantly incomplete ( ≳ 30 percent) at censusing infrared-luminous star formation at high z.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): galaxies: evolution - galaxies: high-redshift - galaxies: starbursts - infrared: galaxies

VizieR on-line data: <Available at CDS (J/MNRAS/436/1919): table1.dat table2.dat table4.dat table5.dat table6.dat table7.dat table8.dat table9.dat>

Nomenclature: Table 1, col(1): [CCC2013] SMM JHHMMSS.s+DDMMSS N=78 = Table 1, col(2): [CCC2013] 450.NN (Nos 450.00-450.77). Table 2, col(1): [CCC2013] SMM JHHMMSS.s+DDMMSS N=99 = Table 2, col(2): [CCC2013] 850.NN (Nos 850.00-850.98). Table 5: [CCC2013] 450.NN N N=?. Table 7: [CCC2013] 850.NN N N=?. Table 4, col(1): [CCC2013] SMM JHHMMSS.s+DDMMSS N=24, Table 4, col(2): [CCC2013] 850.NNN N=24 among (Nos 850.09-850.163), Table 4, col(3): [CCC2013] 450.NNN N=24 among (Nos 450.78-450.252). Table 6: [CCC2013] 450.NNN N N=66, [CCC2013] 850.NNN N N=66.

Simbad objects: 161

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Number of rows : 161
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 2282 1
2 AzTEC J095943.22+022136.1 G 09 59 43.22 +02 21 36.1   24.7 24.1     ~ 9 0
3 [CCC2013] SMM J095944.0+022105 smm 09 59 44.0 +02 21 05           ~ 1 0
4 [CCC2013] SMM J095945.2+022253 smm 09 59 45.2 +02 22 53           ~ 1 0
5 [CCC2013] SMM J095945.7+021837 smm 09 59 45.7 +02 18 37           ~ 1 0
6 [CCC2013] SMM J095946.3+022931 smm 09 59 46.3 +02 29 31           ~ 1 0
7 [CCC2013] SMM J095948.1+022014 smm 09 59 48.1 +02 20 14           ~ 1 0
8 [CCC2013] SMM J095948.9+022748 smm 09 59 48.9 +02 27 48           ~ 1 0
9 [CCC2013] SMM J095950.5+022016 smm 09 59 50.5 +02 20 16           ~ 1 0
10 AzTEC J095950.69+022829.5 G 09 59 50.681 +02 28 19.06           ~ 6 0
11 [CCC2013] SMM J095950.9+022742 smm 09 59 50.9 +02 27 42           ~ 1 0
12 [CCC2013] 850.47 smm 09 59 52.2 +02 21 33           ~ 1 0
13 [CCC2013] SMM J095952.6+022258 smm 09 59 52.6 +02 22 58           ~ 2 0
14 [CCC2013] SMM J095952.6+022711 smm 09 59 52.6 +02 27 11           ~ 1 0
15 AzTEC J095953.83+021847.9 G 09 59 52.950 +02 18 49.13           ~ 9 0
16 COSMOSMAMBO 36W mm 09 59 53.0 +02 18 51           ~ 3 0
17 [CCC2013] SMM J095955.3+021954 smm 09 59 55.3 +02 19 54           ~ 1 0
18 [CCC2013] SMM J095956.4+021854 smm 09 59 56.4 +02 18 54           ~ 1 0
19 [CCC2013] SMM J095957.0+022153 smm 09 59 57.0 +02 21 53           ~ 1 0
20 AS2COS 0006.1 rG 09 59 57.290 +02 27 30.54   27.5 26.8     ~ 26 0
21 [CCC2013] SMM J095959.0+022441 smm 09 59 59.0 +02 24 41           ~ 1 0
22 [CCC2013] SMM J095959.3+023000 smm 09 59 59.3 +02 30 00           ~ 1 0
23 [CCC2013] SMM J095959.9+022705 G 09 59 59.9 +02 27 05           ~ 5 0
24 [CCC2013] SMM J100000.0+022524 smm 10 00 00.0 +02 25 24           ~ 2 0
25 [CCC2013] SMM J100000.3+022902 smm 10 00 00.3 +02 29 02           ~ 1 0
26 [CCC2013] SMM J100000.4+022256 smm 10 00 00.4 +02 22 56           ~ 1 0
27 [CCC2013] SMM J100000.5+022503 smm 10 00 00.5 +02 25 03           ~ 1 0
28 [CCC2013] SMM J100000.6+022137 smm 10 00 00.6 +02 21 37           ~ 1 0
29 [CCC2013] SMM J100000.7+022001 smm 10 00 00.7 +02 20 01           ~ 2 0
30 [CCC2013] SMM J100000.7+022740 smm 10 00 00.7 +02 27 40           ~ 3 0
31 [CCC2013] SMM J100001.3+021745 smm 10 00 01.3 +02 17 45           ~ 2 0
32 [CCC2013] SMM J100001.5+021939 smm 10 00 01.5 +02 19 39           ~ 2 0
33 AzTEC J100001.59+021611.2 G 10 00 01.59 +02 16 11.2           ~ 2 0
34 [CCC2013] 850.32 smm 10 00 01.7 +02 24 26           ~ 1 0
35 COSMOS2015 643983 G 10 00 01.798 +02 16 27.40 24.79 24.17 23.06 22.39 21.691 ~ 14 0
36 [CCC2013] SMM J100002.0+022820 smm 10 00 02.0 +02 28 20           ~ 1 0
37 [CCC2013] 850.28 smm 10 00 04.2 +02 20 59           ~ 1 0
38 [CCC2013] SMM J100004.6+021820 smm 10 00 04.6 +02 18 20           ~ 2 0
39 AzTEC J100004.54+023040.1 G 10 00 04.680 +02 30 37.30           ~ 6 0
40 [CCC2013] SMM J100005.0+021719 smm 10 00 05.0 +02 17 19           ~ 1 0
41 [CCC2013] SMM J100005.1+021526 smm 10 00 05.1 +02 15 26           ~ 1 0
42 [CCC2013] SMM J100005.5+021448 smm 10 00 05.5 +02 14 48           ~ 1 0
43 [CCC2013] SMM J100005.5+022958 smm 10 00 05.5 +02 29 58           ~ 2 0
44 ACS-GC 20150633 rG 10 00 06.57 +02 32 59.7   24.570 23.794     ~ 21 0
45 [CCC2013] SMM J100006.6+021527 smm 10 00 06.6 +02 15 27           ~ 1 0
46 [CCC2013] SMM J100006.7+022209 smm 10 00 06.7 +02 22 09           ~ 1 0
47 [CCC2013] SMM J100006.9+022047 smm 10 00 06.9 +02 20 47           ~ 2 0
48 [CCC2013] SMM J100007.2+021803 smm 10 00 07.2 +02 18 03           ~ 1 0
49 [CCC2013] SMM J100007.8+022306 smm 10 00 07.8 +02 23 06           ~ 1 0
50 AS2COS 0001.1 G 10 00 08.03880890735 +02 26 12.2927690890           ~ 31 0
51 [CCC2013] SMM J100008.1+023059 smm 10 00 08.1 +02 30 59           ~ 1 0
52 [AWA2011] AzTEC/C35 smm 10 00 08.37 +02 20 24.3   27.3 26.4     ~ 5 0
53 [CCC2013] SMM J100008.4+022241 smm 10 00 08.4 +02 22 41           ~ 1 0
54 [CCC2013] SMM J100008.7+021912 smm 10 00 08.86 +02 19 10.5           ~ 2 0
55 [CCC2013] SMM J100009.4+022223 smm 10 00 09.4 +02 22 23           ~ 1 0
56 COSMOS2015 658242 G 10 00 10.18 +02 17 59.5           ~ 2 0
57 [CCC2013] 850.26 smm 10 00 10.2 +02 26 24           ~ 1 0
58 [CCC2013] SMM J100010.4+022026 smm 10 00 10.4 +02 20 26           ~ 1 0
59 [CCC2013] SMM J100010.2+022221 smm 10 00 10.41 +02 22 20.9           ~ 3 0
60 [CCC2013] SMM J100010.7+022707 smm 10 00 10.7 +02 27 07           ~ 1 0
61 [CCC2013] SMM J100011.2+021554 smm 10 00 11.2 +02 15 54           ~ 1 0
62 [CCC2013] SMM J100011.4+021508 smm 10 00 11.4 +02 15 08           ~ 2 0
63 [CCC2013] SMM J100011.9+022937 smm 10 00 11.9 +02 29 37           ~ 1 0
64 [CCC2013] SMM J100012.1+022310 smm 10 00 12.1 +02 23 10           ~ 1 0
65 AS2COS 0032.1 rG 10 00 12.583 +02 14 43.95           ~ 17 0
66 [CCC2013] SMM J100013.4+021807 smm 10 00 13.4 +02 18 07           ~ 2 0
67 ACS-GC 20123205 rG 10 00 13.57 +02 22 25.4   24.9013 24.2832   23.060 ~ 33 0
68 COSMOS2015 653679 G 10 00 13.69 +02 17 34.3           ~ 6 0
69 [CCC2013] SMM J100014.1+022704 smm 10 00 14.1 +02 27 04           ~ 1 0
70 AzTEC J100014.35+023009.0 smm 10 00 14.35 +02 30 09.0           ~ 2 0
71 [CCC2013] SMM J100014.4+021706 smm 10 00 14.4 +02 17 06           ~ 1 0
72 AzTEC J100015.77+021545.1 smm 10 00 15.7 +02 15 49           ~ 16 0
73 [CCC2013] SMM J100015.7+022445 G 10 00 15.89 +02 24 45.9           ~ 3 0
74 [CCC2013] SMM J100016.6+022000 smm 10 00 16.6 +02 20 00           ~ 1 0
75 [CCC2013] 850.34 smm 10 00 16.6 +02 26 37           ~ 4 0
76 [CCC2013] SMM J100017.2+022138 smm 10 00 17.2 +02 21 38           ~ 2 0
77 [CCC2013] 850.42 smm 10 00 17.2 +02 25 21           ~ 1 0
78 [CCC2013] 850.44 smm 10 00 18.5 +02 22 46           ~ 3 0
79 COSMOS2015 646311 G 10 00 18.69 +02 16 52.2           ~ 10 0
80 [CCC2013] SMM J100018.7+022813 smm 10 00 18.7 +02 28 13           ~ 2 0
81 COSMOS 1989207 G 10 00 19.453 +02 20 24.36   22.834 22.208   20.54 ~ 8 0
82 AS2COS 0004.1 rG 10 00 19.750 +02 32 04.29     25.3     ~ 39 0
83 [CCC2013] SMM J100020.0+022129 smm 10 00 20.0 +02 21 29           ~ 2 0
84 COSMOS2015 795893 rG 10 00 20.00647 +02 30 20.0342           ~ 3 0
85 S2CLS c26 G 10 00 20.37 +02 17 22.8           ~ 7 0
86 [CCC2013] 850.73 smm 10 00 20.7 +02 22 51           ~ 2 0
87 [CCC2013] SMM J100021.3+023055 smm 10 00 21.3 +02 30 55           ~ 1 0
88 [CCC2013] SMM J100021.7+023114 smm 10 00 21.7 +02 31 14           ~ 1 0
89 [CCC2013] SMM J100022.1+022842 smm 10 00 22.1 +02 28 42           ~ 1 0
90 [CCC2013] SMM J100022.2+022354 smm 10 00 22.2 +02 23 54           ~ 1 0
91 [CCC2013] SMM J100022.2+023026 smm 10 00 22.2 +02 30 26           ~ 1 0
92 COSMOS 1606938 G 10 00 23.44 +02 15 35.5   25.891 25.661     ~ 3 0
93 AS2COS 0010.1 G 10 00 23.65 +02 21 55.3 23.52 22.48 21.87     ~ 20 0
94 CANDELS COSMOS F160W J100023.67+021914.9 AG? 10 00 23.68 +02 19 14.9           ~ 7 0
95 AzTEC J100024.20+021748.7 rG 10 00 23.97 +02 17 50.0           ~ 20 0
96 [CCC2013] 850.18 smm 10 00 23.98 +02 29 50.0           ~ 2 0
97 CANDELS COSMOS F160W J100024.03+021749.6 G 10 00 24.03 +02 17 49.7   23.067 21.897   20.223 ~ 31 0
98 AzTEC J100024.06+022000.6 smm 10 00 24.06 +02 20 00.6           ~ 8 0
99 [CCC2013] SMM J100024.4+022831 smm 10 00 24.4 +02 28 31           ~ 1 0
100 [CCC2013] SMM J100025.0+022753 smm 10 00 25.0 +02 27 53           ~ 1 0
101 [CCC2013] 850.15 smm 10 00 25.23 +02 26 08.0           ~ 6 0
102 COSMOS2015 675653 G 10 00 25.29 +02 19 33.7   25.750 25.525     ~ 4 0
103 CANDELS COSMOS F160W J100025.30+021846.2 rG 10 00 25.31 +02 18 46.3           ~ 15 0
104 COSMOS-XS J100025.40 +022543.72 rG 10 00 25.42 +02 25 43.6           ~ 5 0
105 [CCC2013] SMM J100025.1+021508 smm 10 00 25.550 +02 15 08.44           ~ 5 0
106 COSMOS2015 655219 G 10 00 26.18 +02 17 39.6   25.612 25.217     ~ 8 0
107 [CCC2013] SMM J100026.3+021528 smm 10 00 26.39 +02 15 30.0           ~ 2 0
108 AzTEC J100026.68+023128.1 smm 10 00 26.68 +02 31 28.1           ~ 6 0
109 [CCC2013] 850.96 smm 10 00 26.8 +02 23 18           ~ 1 0
110 COSMOS2015 709682 rG 10 00 26.98 +02 22 30.9           ~ 16 0
111 [CCC2013] SMM J100027.2+022448 smm 10 00 27.2 +02 24 48           ~ 1 0
112 [CCC2013] SMM J100027.8+022554 smm 10 00 27.8 +02 25 54           ~ 1 0
113 [CCC2013] SMM J100028.5+021927 G 10 00 28.58 +02 19 28.3           ~ 3 0
114 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 3639 0
115 [CCC2013] SMM J100028.8+023336 smm 10 00 28.8 +02 33 36           ~ 1 0
116 AzTEC J100028.94+023200.3 smm 10 00 28.94 +02 32 00.3           ~ 8 0
117 [CCC2013] SMM J100030.8+023104 smm 10 00 30.8 +02 31 04           ~ 1 0
118 AzTEC J100031.06+022751.5 rG 10 00 31.02963 +02 27 51.6822           ~ 7 0
119 [CCC2013] SMM J100032.4+021802 smm 10 00 32.4 +02 18 02           ~ 1 0
120 [CCC2013] SMM J100032.4+022148 smm 10 00 32.4 +02 21 48           ~ 1 0
121 [CCC2013] SMM J100032.4+023321 smm 10 00 32.4 +02 33 21           ~ 1 0
122 [CCC2013] 850.90 smm 10 00 33.1 +02 30 46           ~ 1 0
123 AS2COS 0007.1 rG 10 00 33.36182 +02 26 01.4980           ~ 18 0
124 [CCC2013] SMM J100034.2+023421 smm 10 00 34.2 +02 34 21           ~ 1 0
125 S2CLS c03 rG 10 00 34.33 +02 21 21.1           ~ 8 0
126 AS2COS 0013.1 rG 10 00 35.300 +02 43 53.27   26.3 25.4     ~ 21 0
127 [CCC2013] SMM J100035.6+022826 smm 10 00 35.6 +02 28 26           ~ 1 0
128 CANDELS COSMOS F160W J100036.05+022150.8 AGN 10 00 36.077 +02 21 51.53   24.726 24.725     ~ 18 0
129 COSMOS2015 676661 G 10 00 36.90 +02 19 40.8           ~ 5 0
130 COSMOS2015 708131 rG 10 00 39.24 +02 22 20.9 23.14 24.444 24.250     ~ 19 0
131 COSMOS2015 657782 G 10 00 40.25 +02 17 55.5 23.76 22.64 21.94     ~ 9 0
132 [CCC2013] SMM J100041.3+021640 smm 10 00 41.3 +02 16 40           ~ 1 0
133 [CCC2013] SMM J100041.8+022111 smm 10 00 41.80 +02 21 10.2           ~ 2 0
134 [CCC2013] SMM J100041.8+022404 smm 10 00 41.8 +02 24 04           ~ 1 0
135 [CCC2013] SMM J100043.8+022857 smm 10 00 43.8 +02 28 57           ~ 1 0
136 COSMOS2015 717183 G 10 00 44.19 +02 23 11.3   25.226 25.166     ~ 7 0
137 CANDELS COSMOS F160W J100045.03+021920.9 EmG 10 00 45.03 +02 19 21.1   25.304 25.138     ~ 14 0
138 [CCC2013] SMM J100047.3+022049 smm 10 00 47.3 +02 20 49           ~ 1 0
139 [CCC2013] SMM J100047.5+022520 smm 10 00 47.5 +02 25 20           ~ 1 0
140 [CCC2013] SMM J100048.3+022926 smm 10 00 48.3 +02 29 26           ~ 1 0
141 [CCC2013] SMM J100048.9+023023 smm 10 00 48.9 +02 30 23           ~ 1 0
142 [CCC2013] SMM J100049.9+022257 smm 10 00 49.9 +02 22 57           ~ 1 0
143 [CCC2013] SMM J100050.1+022116 smm 10 00 50.1 +02 21 16           ~ 2 0
144 [CCC2013] SMM J100050.1+022615 smm 10 00 50.1 +02 26 15           ~ 1 0
145 [CCC2013] SMM J100054.5+021919 smm 10 00 54.5 +02 19 19           ~ 1 0
146 [CCC2013] SMM J100054.8+021945 smm 10 00 54.8 +02 19 45           ~ 2 0
147 [CCC2013] SMM J100056.1+021831 smm 10 00 56.1 +02 18 31           ~ 1 0
148 [CCC2013] SMM J100056.7+022014 smm 10 00 56.7 +02 20 14           ~ 2 0
149 [CCC2013] SMM J100056.7+022945 smm 10 00 56.7 +02 29 45           ~ 1 0
150 [CCC2013] 850.05 smm 10 00 57.0 +02 20 14           ~ 1 0
151 [CCC2013] SMM J100057.2+022009 smm 10 00 57.2 +02 20 09           ~ 1 0
152 AzTEC J100057.20+022008.7 rG 10 00 57.2 +02 20 13           ~ 15 0
153 [CCC2013] SMM J100059.2+022108 smm 10 00 59.2 +02 21 08           ~ 1 0
154 [CCC2013] 850.58 smm 10 01 01.0 +02 28 00           ~ 1 0
155 [CCC2013] SMM J100101.3+022439 smm 10 01 01.3 +02 24 39           ~ 1 0
156 [CCC2013] SMM J100102.2+022234 smm 10 01 02.2 +02 22 34           ~ 1 0
157 [CCC2013] SMM J100103.9+022447 smm 10 01 03.9 +02 24 47           ~ 1 0
158 [CCC2013] 850.146 smm 10 01 05.00 +02 26 32.7           ~ 6 0
159 [AWA2011] AzTEC/C74 smm 10 01 05.64 +02 21 39.6           ~ 3 0
160 [CCC2013] SMM J100106.1+022454 smm 10 01 06.1 +02 24 54           ~ 1 0
161 [CCC2013] SMM J100109.0+022255 smm 10 01 09.0 +02 22 55           ~ 1 0

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