The East Asian Observatory SCUBA–2 survey of the COSMOS field: unveiling 1147 bright sub-millimeter sources across 2.6 square degrees. (arXiv:1912.02229v1 [astro-ph.GA])

The East Asian Observatory SCUBA–2 survey of the COSMOS field: unveiling 1147 bright sub-millimeter sources across 2.6 square degrees. (arXiv:1912.02229v1 [astro-ph.GA])
<a href="http://arxiv.org/find/astro-ph/1/au:+Simpson_J/0/1/0/all/0/1">J. M. Simpson</a> (EACOA: ASIAA), <a href="http://arxiv.org/find/astro-ph/1/au:+Smail_I/0/1/0/all/0/1">Ian Smail</a> (Durham University), <a href="http://arxiv.org/find/astro-ph/1/au:+Swinbank_A/0/1/0/all/0/1">A. M. Swinbank</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chapman_S/0/1/0/all/0/1">S. C. Chapman</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chen_C/0/1/0/all/0/1">Chian-Chou Chen</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Geach_J/0/1/0/all/0/1">J. E. Geach</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Matsuda_Y/0/1/0/all/0/1">Y. Matsuda</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wang_R/0/1/0/all/0/1">R. Wang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wang_W/0/1/0/all/0/1">Wei-Hao Wang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Yang_Y/0/1/0/all/0/1">Y. Yang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ao_Y/0/1/0/all/0/1">Y. Ao</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Asquith_R/0/1/0/all/0/1">R. Asquith</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bourne_N/0/1/0/all/0/1">N. Bourne</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Coogan_R/0/1/0/all/0/1">R. T. Coogan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Coppin_K/0/1/0/all/0/1">K. Coppin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gullberg_B/0/1/0/all/0/1">B. Gullberg</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hine_N/0/1/0/all/0/1">N. K. Hine</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ho_L/0/1/0/all/0/1">L. C. Ho</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hwang_H/0/1/0/all/0/1">H. S. Hwang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ivison_R/0/1/0/all/0/1">R. J. Ivison</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kato_Y/0/1/0/all/0/1">Y. Kato</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lacaille_K/0/1/0/all/0/1">K.Lacaille</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lewis_A/0/1/0/all/0/1">A. J. R. Lewis</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Liu_D/0/1/0/all/0/1">D. Liu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Michalowski_M/0/1/0/all/0/1">M. J. Micha&#x142;owski</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Oteo_I/0/1/0/all/0/1">I. Oteo</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sawicki_M/0/1/0/all/0/1">M. Sawicki</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Scholtz_J/0/1/0/all/0/1">J. Scholtz</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Smith_D/0/1/0/all/0/1">D. Smith</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Thomson_A/0/1/0/all/0/1">A. P. Thomson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wardlow_J/0/1/0/all/0/1">J. L. Wardlow</a>

We present sensitive 850$mu$m imaging of the COSMOS field using 640hr 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 $sigma_{850mu{mathrm{m}}}$=1.2mJy/beam over an area of
1.6 sq. degree (MAIN; HST/ACS footprint), and
$sigma_{850mu{mathrm{m}}}$=1.7mJy/beam over an additional 1 sq. degree of
supplementary (SUPP) coverage. We present a catalogue of 1020 and 127 sources
detected at a significance level of >4$sigma$ and >4.3$sigma$ in the MAIN and
SUPP regions, respectively, corresponding to a uniform 2% false-detection rate.
We construct the single-dish 850$mu$m number counts at $S_{850}$>2mJy 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 $S_{850}$=2-10mJy 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$pm$0.2 galaxies within a 13$”$ radius
(~100kpc at $z$~2). The bulk of these galaxies represent near-infrared-selected
SMGs and/or spatially-correlated sources and lie at a median photometric
redshift of $z$=2.0$pm$0.1. Finally, we perform a stacking analysis at
sub-millimeter and far-infrared wavelengths of stellar-mass-selected galaxies
($M_{star}$=10$^{10}$-10$^{12}{rm M_{odot}}$) from $z$=0-4, obtaining
high-significance detections at 850um in all subsets (SNR=4-30), and
investigate the relation between far-infrared luminosity, stellar mass, and the
peak wavelength of the dust SED. The publication of this survey adds a new
deep, uniform sub-millimeter layer to the wavelength coverage of this
well-studied COSMOS field.

We present sensitive 850$mu$m imaging of the COSMOS field using 640hr 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 $sigma_{850mu{mathrm{m}}}$=1.2mJy/beam over an area of
1.6 sq. degree (MAIN; HST/ACS footprint), and
$sigma_{850mu{mathrm{m}}}$=1.7mJy/beam over an additional 1 sq. degree of
supplementary (SUPP) coverage. We present a catalogue of 1020 and 127 sources
detected at a significance level of >4$sigma$ and >4.3$sigma$ in the MAIN and
SUPP regions, respectively, corresponding to a uniform 2% false-detection rate.
We construct the single-dish 850$mu$m number counts at $S_{850}$>2mJy 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 $S_{850}$=2-10mJy 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$pm$0.2 galaxies within a 13$”$ radius
(~100kpc at $z$~2). The bulk of these galaxies represent near-infrared-selected
SMGs and/or spatially-correlated sources and lie at a median photometric
redshift of $z$=2.0$pm$0.1. Finally, we perform a stacking analysis at
sub-millimeter and far-infrared wavelengths of stellar-mass-selected galaxies
($M_{star}$=10$^{10}$-10$^{12}{rm M_{odot}}$) from $z$=0-4, obtaining
high-significance detections at 850um in all subsets (SNR=4-30), and
investigate the relation between far-infrared luminosity, stellar mass, and the
peak wavelength of the dust SED. The publication of this survey adds a new
deep, uniform sub-millimeter layer to the wavelength coverage of this
well-studied COSMOS field.

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