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Table 1

Comparison of N2CLS-May21 depth to other single-dish (sub)mm surveys in GOODS-N and COSMOS, which are all given as 1σ of the noise level.

Field Survey vobs GHz Area arcmin2 rms mJy beam−1
GOODS-N 0.85/1.2 mm AzTEC/JCMT(1) 273 245 0.84
SCUBA2/JCMT(2) 353 ~140 ~0.16
N2CLS-May2021 255 159 0.11(0.17)

GOODS-N 2 mm GISMO/30m(3) 150 31 0.14
N2CLS-May2021 150 159 0.031(0.048)

COSMOS 0.85/1.2 mm AzTEC/ASTE(4) 273 2592 1.00
MAMBO/30m(5) 255 400 1.00
S2COSMOS/JCMT(6) 353 5760 ~0.47
N2CLS-May2021 255 1010 0.43(0.46)

COSMOS 2 mm GISMO/30m(7) 150 250 0.23
N2CLS-May2021 150 1010 0.13(0.14)

Notes. The average and central noise levels of N2CLS are provided as values in and out of parentheses, respectively. For surveys not exactly observing at 1.2 mm (i.e., AzTEC observations at 1.1 mm), the rms noise is normalized to 1.2 mm assuming the average IR SED of star-forming galaxies at z = 2 from Béthermin et al. (2015a). Under this assumption, the depths of AzTEC and SCUBA2 observations are divided by a factor of 1.25 and 2.10, respectively. vobs is the central frequency of the instruments.

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