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An ALMA survey of the brightest sub-millimetre sources in the SCUBA-2-COSMOS field
Simpson, J. M.1,2,3; Smail, Ian1; Dudzeviciute, U.1; Matsuda, Y.3,4; Hsieh, B-C2; Wang, W-H2; Swinbank, A. M.1; Stach, S. M.1; An, Fang Xia5; Birkin, J. E.1; Ao, Y.6,7; Bunker, A. J.8; Chapman, S. C.9,10,11; Chen, Chian-Chou2; Coppin, K. E. K.12; Ikarashi, S.1; Ivison, R. J.13; Mitsuhashi, I3,14; Saito, T.15; Umehata, H.14,16; Wang, R.17; Zhao YH(赵应和)18
Corresponding AuthorSmail, Ian(ian.smail@durham.ac.uk)
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2020-07-01
Volume495Issue:3Pages:3409-3430
DOI10.1093/mnras/staa1345
Contribution Rank第18完成单位
Indexed BySCI
Keywordgalaxies: evolution galaxies: formation galaxies: high-redshift sub-millimetre: galaxies
Abstract

We present an ALMA study of the similar to 180 brightest sources in the SCUBA-2 850-mu m map of the COSMOS field from the S2COSMOS survey, as a pilot study for AS2COSMOS - a full survey of the similar to 1000 sources in this field. In this pilot study, we have obtained 870-mu m continuum maps of an essentially complete sample of the brightest 182 sub-millimetre sources (S-850 mu m > 6.2 mJy) in COSMOS. Our ALMA maps detect 260 sub-millimetre galaxies (SMGs) spanning a range in flux density of S-870 mu m = 0.7-19.2 mJy. We detect more than one SMG counterpart in 34 +/- 2 percent of sub-millimetre sources, increasing to 53 +/- 8 percent for SCUBA-2 sources brighter than S-850 mu m > 12 mJy. We estimate that approximately one-third of these SMG-SMG pairs are physically associated (with a higher rate for the brighter secondary SMGs, S-870 mu m greater than or similar to 3 mJy), and illustrate this with the serendipitous detection of bright [C II] 157.74-mu m line emission in two SMGs, AS2COS 0001.1 and 0001.2 at z = 4.63, associated with the highest significance single-dish source. Using our source catalogue, we construct the interferometric 870-mu m number counts at S-870 mu m > 6.2 mJy. We use the extensive archival data of this field to construct the multiwavelength spectral energy distribution of each AS2COSMOS SMG, and subsequently model this emission with MAGPHYS to estimate their photometric redshifts. We find a median photometric redshift for the S-870 mu m > 6.2 mJy AS2COSMOS sample of z = 2.87 +/- 0.08, and clear evidence for an increase in the median redshift with 870-mu m flux density suggesting strong evolution in the bright end of the 870-mu m luminosity function.

Funding ProjectSTFC[ST/P000541/1] ; STFC[ST/T000244/1] ; STFC[ST/R504725/1] ; STFC[ST/S50536/1] ; STFC[ST/R000905/1] ; EACOA fellowship programme ; JSPS KAKENHI[25287043] ; JSPS KAKENHI[17H04831] ; JSPS KAKENHI[17KK0098] ; Ministry of Science and Technology of Taiwan[105-2112-M-001-029MY3] ; Ministry of Science and Technology of Taiwan[108-2112-M-001-014-MY3] ; NSFC[11933011] ; Royal Society/Leverhulme Trust Senior Fellowship[SRF/RI/191013] ; National Key RAMP ; D Program of China[2017YFA0402700] ; Science and Technology Facilities Council of the United Kingdom ; Canadian Space Agency ; [ST/M007634/1] ; [ST/M003019/1] ; [ST/N005856/1]
Funding OrganizationSTFC[ST/P000541/1, ST/T000244/1, ST/R504725/1, ST/S50536/1, ST/R000905/1] ; EACOA fellowship programme ; JSPS KAKENHI[25287043, 17H04831, 17KK0098] ; Ministry of Science and Technology of Taiwan[105-2112-M-001-029MY3, 108-2112-M-001-014-MY3] ; NSFC[11933011] ; Royal Society/Leverhulme Trust Senior Fellowship[SRF/RI/191013] ; National Key RAMP ; D Program of China[2017YFA0402700] ; Science and Technology Facilities Council of the United Kingdom ; Canadian Space Agency ; [ST/M007634/1] ; [ST/M003019/1] ; [ST/N005856/1]
Language英语
Subject Area天文学 ; 星系与宇宙学 ; 星系形成与演化
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS IDWOS:000543025500062
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCOSMOLOGY LEGACY SURVEY ; EXTRAGALACTIC SURVEY ; STAR-FORMATION ; GALAXIES ; RADIO ; RESOLUTION ; CAMERA ; MODEL ; SOUTH ; IDENTIFICATIONS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/23494
Collection丽江天文观测站(南方基地)
Corresponding AuthorSmail, Ian
Affiliation1.Centre for Extragalactic Astronomy, Department of Physics, Durham University, South Road, Durham DH1 3LE, UK
2.Academia Sinica Institute of Astronomy and Astrophysics, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan
3.National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
4.The Graduate University for Advanced Studies (SOKENDAI), Osawa, Mitaka, Tokyo 181-8588, Japan
5.Inter-University Institute for Data Intensive Astronomy, and Department of Physics and Astronomy, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, Cape Town, South Africa
6.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210033, Jiangsu, People’s Republic of China
7.School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, Anhui, People’s Republic of China
8.Department of Physics, University of Oxford, Keble Road, Oxford OX1 3RH, UK
9.Department of Physics and Astronomy, University of British Columbia, 6225 Agricultural Road, Vancouver, BC V6T 1Z1, Canada
10.National Research Council, Herzberg Astronomy and Astrophysics, 5071 West Saanich Road, Victoria, BC V9E 2E7, Canada
11.Department of Physics and Atmospheric Science, Dalhousie University, Halifax, NS B3H 4R2, Canada
12.Centre for Astrophysics Research, School of Physics, Astronomy and Mathematics,University of Hertfordshire, College Lane,Hatfield AL10 9AB, UK
13.European Southern Observatory, Karl Schwarzschild Strasse 2, D-85748 Garching, Germany
14.Institute of Astronomy, School of Science, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan
15.Nishi-Harima Astronomical Observatory, Centre for Astronomy, University of Hyogo 407-2 Nishigaichi, Sayo, Sayo-gun, Hyogo 679-5313, Japan
16.RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
17.Kavli Institute for Astronomy and Astrophysics, Peking University, Haidian District, Beijing 100871, People’s Republic of China
18.Yunnan Observatories, Chinese Academy of Sciences, Guandu District, Kunming 650011, People’s Republic of China
Recommended Citation
GB/T 7714
Simpson, J. M.,Smail, Ian,Dudzeviciute, U.,et al. An ALMA survey of the brightest sub-millimetre sources in the SCUBA-2-COSMOS field[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,495(3):3409-3430.
APA Simpson, J. M..,Smail, Ian.,Dudzeviciute, U..,Matsuda, Y..,Hsieh, B-C.,...&Zhao YH.(2020).An ALMA survey of the brightest sub-millimetre sources in the SCUBA-2-COSMOS field.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,495(3),3409-3430.
MLA Simpson, J. M.,et al."An ALMA survey of the brightest sub-millimetre sources in the SCUBA-2-COSMOS field".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 495.3(2020):3409-3430.
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