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The East Asian Observatory SCUBA-2 Survey of the COSMOS Field: Unveiling 1147 Bright Sub-millimeter Sources across 2.6 Square Degrees
Simpson, J. M.1; Smail, Ian2; Swinbank, A. M.2; Chapman, S. C.3; Chen, Chian-Chou4; Geach, J. E.6; Matsuda, Y.7,8; Wang, R.9; Wang, Wei-Hao1; Yang, Y.10; Ao, Y.11,12; Asquith, R.13; Bourne, N.; Coogan, R. T.14; Coppin, K.6; Gullberg, B.2; Hine, N. K.6; Ho, L. C.9,15; Hwang, H. S.10; Ivison, R. J.4,5; Kato, Y.7; Lacaille, K.16; Lewis, A. J. R.5; Liu, D.17; Michalowski, M. J.18; Oteo, I.4,5; Sawicki, M.19; Scholtz, J.2; Smith, D.6; Thomson, A. P.20; Wardlow, J. L.21
2019-07-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume880Issue:1Pages:21
Corresponding AuthorSimpson, J. M.(jsimpson@asiaa.sinica.edu.tw)
AbstractWe present sensitive 850 mu m 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 sigma(850 mu m) = 1.2 mJy beam(-1 )over an area of 1.6 sq. degree (MAIN; Hubble Space Telescope/Advanced Camera for Surveys footprint), and sigma(850 mu m) = 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 >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 S-850 mu m 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 (similar to 100 kpc at z similar to 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 stellarmass-selected galaxies (M-* = 10(10)-10(12) M-circle dot) from z = 0-4, obtaining high-significance detections at 850 mu m 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.
Keywordgalaxies: high-redshift galaxies: starburst
DOI10.3847/1538-4357/ab23ff
WOS KeywordLEGACY SURVEY ; DEEP-FIELD ; STAR-FORMATION ; MU-M ; LUMINOSITY FUNCTION ; GALAXY FORMATION ; SOURCE COUNTS ; ALMA SURVEY ; EXTRAGALACTIC SURVEY ; INFRARED GALAXIES
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000476896700008
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/27058
Collection中国科学院紫金山天文台
Corresponding AuthorSimpson, J. M.
Affiliation1.Acad Sinica, Inst Astron & Astrophys, 1,Sect 4,Roosevelt Rd, Taipei 10617, Taiwan
2.Univ Durham, Ctr Extragalact Astron, South Rd, Durham DH1 3LE, England
3.Dalhousie Univ, Dept Phys & Atmospher Sci, Halifax, NS B3H 3J5, Canada
4.European Southern Observ, Karl Schwarzschild Str 2, Garching, Germany
5.Univ Edinburgh, Royal Observ, Inst Astron, Blackford HIll, Edinburgh EH9 3HJ, Midlothian, Scotland
6.Univ Hertfordshire, Sci & Technol Res Inst, Ctr Astrophys Res, Hatfield AL10 9AB, Herts, England
7.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
8.Grad Univ Adv Studies SOKENDAI, Mitaka, Tokyo 1818588, Japan
9.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
10.Korea Astron & Space Sci Inst, 776 Daedeokdae Ro, Daejeon 34055, South Korea
11.Chinese Acad Sci, Purple Mt Observ, 8 Yuanhua Rd, Nanjing 210034, Jiangsu, Peoples R China
12.Chinese Acad Sci, Key Lab Radio Astron, 8 Yuanhua Rd, Nanjing 210034, Jiangsu, Peoples R China
13.Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England
14.Univ Sussex, Dept Phys & Astron, Astron Ctr, Brighton BN1 9QH, E Sussex, England
15.Peking Univ, Dept Astron, Beijing 100087, Peoples R China
16.McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
17.Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany
18.Adam Mickiewicz Univ, Fac Phys, Astron Observ Inst, Ul Sloneczna 36, PL-60286 Poznan, Poland
19.St Marys Univ, Dept Phys & Astron, Halifax, NS B3H 3C3, Canada
20.Univ Manchester, Oxford Rd, Manchester M13 9PL, Lancs, England
21.Univ Lancaster, Phys Dept, Lancaster LA1 4YB, England
Recommended Citation
GB/T 7714
Simpson, J. M.,Smail, Ian,Swinbank, A. M.,et al. The East Asian Observatory SCUBA-2 Survey of the COSMOS Field: Unveiling 1147 Bright Sub-millimeter Sources across 2.6 Square Degrees[J]. ASTROPHYSICAL JOURNAL,2019,880(1):21.
APA Simpson, J. M..,Smail, Ian.,Swinbank, A. M..,Chapman, S. C..,Chen, Chian-Chou.,...&Wardlow, J. L..(2019).The East Asian Observatory SCUBA-2 Survey of the COSMOS Field: Unveiling 1147 Bright Sub-millimeter Sources across 2.6 Square Degrees.ASTROPHYSICAL JOURNAL,880(1),21.
MLA Simpson, J. M.,et al."The East Asian Observatory SCUBA-2 Survey of the COSMOS Field: Unveiling 1147 Bright Sub-millimeter Sources across 2.6 Square Degrees".ASTROPHYSICAL JOURNAL 880.1(2019):21.
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