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Journal Article

The East Asian Observatory SCUBA-2 Survey of the COSMOS Field: Unveiling 1147 Bright Sub-millimeter Sources across 2.6 Square Degrees

MPS-Authors

Simpson,  J. M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Smail,  Ian
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Swinbank,  A. M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Chapman,  S. C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Chen,  Chian-Chou
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Geach,  J. E.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Matsuda,  Y.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wang,  R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wang,  Wei-Hao
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Yang,  Y.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ao,  Y.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Asquith,  R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Bourne,  N.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Coogan,  R. T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Coppin,  K.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Gullberg,  B.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hine,  N. K.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ho,  L. C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Hwang,  H. S.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ivison,  R. J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kato,  Y.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lacaille,  K.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Lewis,  A. J. R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Liu,  D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Michałowski,  M. J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Oteo,  I.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Sawicki,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Scholtz,  J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Smith,  D.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Thomson,  A. P.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Wardlow,  J. L.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

External Resource

https://ui.adsabs.harvard.edu/abs/2019ApJ...880...43S
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Citation

Simpson, J. M., Smail, I., Swinbank, A. M., Chapman, S. C., Chen, C.-C., Geach, J. E., et al. (2019). The East Asian Observatory SCUBA-2 Survey of the COSMOS Field: Unveiling 1147 Bright Sub-millimeter Sources across 2.6 Square Degrees. The Astrophysical Journal, 880.


Cite as: https://hdl.handle.net/21.11116/0000-0005-CFBE-D
Abstract
We present sensitive 850 μm imaging of the Cosmological Evolution Survey (COSMOS) field using 640 hr of new and archival observations taken with SCUBA-2 at the East Asian Observatory’s James Clerk Maxwell Telescope. The SCUBA-2 COSMOS survey (S2COSMOS) achieves a median noise level of σ 850μm = 1.2 mJy beam−1 over an area of 1.6 sq. degree (MAIN; Hubble Space Telescope/Advanced Camera for Surveys footprint), and σ 850μm = 1.7 mJy beam−1 over an additional 1 sq. degree of supplementary (SUPP) coverage. We present a catalog of 1020 and 127 sources detected at a significance level of >4σ and >4.3σ in the MAIN and SUPP regions, respectively, corresponding to a uniform 2% false-detection rate. We construct the single-dish 850 μm number counts at S 850 > 2 mJy and show that these S2COSMOS counts are in agreement with previous single-dish surveys, demonstrating that degree-scale fields are sufficient to overcome the effects of cosmic variance in the S 850 = 2-10 mJy population. To investigate the properties of the galaxies identified by S2COSMOS sources we measure the surface density of near-infrared- selected galaxies around their positions and identify an average excess of 2.0 ± 0.2 galaxies within a 13″ radius (∼100 kpc at z ∼ 2). The bulk of these galaxies represent near-infrared-selected submillimeter galaxies and/or spatially correlated sources and lie at a median photometric redshift of z = 2.0 ± 0.1. Finally, we perform a stacking analysis at submillimeter and far-infrared wavelengths of stellar-mass- selected galaxies (M ⋆ = 1010-1012 M ☉) from z = 0-4, obtaining high-significance detections at 850 μm in all subsets (signal-to-noise ratio, S/N = 4-30), and investigate the relation between far-infrared luminosity, stellar mass, and the peak wavelength of the dust spectral energy distribution. The publication of this survey adds a new deep, uniform submillimeter layer to the wavelength coverage of this well-studied COSMOS field.