eprintid: 1406148 rev_number: 38 eprint_status: archive userid: 608 dir: disk0/01/40/61/48 datestamp: 2013-09-17 18:55:03 lastmod: 2021-09-20 00:18:34 status_changed: 2018-03-05 14:02:23 type: article metadata_visibility: show item_issues_count: 0 creators_name: Roseboom, IG creators_name: Dunlop, JS creators_name: Cirasuolo, M creators_name: Geach, JE creators_name: Smail, I creators_name: Halpern, M creators_name: van der Werf, P creators_name: Almaini, O creators_name: Arumugam, V creators_name: Asboth, V creators_name: Auld, R creators_name: Blain, A creators_name: Bremer, MN creators_name: Bock, J creators_name: Bowler, RAA creators_name: Buitrago, F creators_name: Chapin, E creators_name: Chapman, S creators_name: Chrysostomou, A creators_name: Clarke, C creators_name: Conley, A creators_name: Coppin, KEK creators_name: Danielson, ALR creators_name: Farrah, D creators_name: Glenn, J creators_name: Hatziminaoglou, E creators_name: Ibar, E creators_name: Ivison, RJ creators_name: Jenness, T creators_name: Van Kampen, E creators_name: Karim, A creators_name: Mackenzie, T creators_name: Marsden, G creators_name: Meijerink, R creators_name: Michalowski, MJ creators_name: Oliver, SJ creators_name: Page, MJ creators_name: Pearson, E creators_name: Scott, D creators_name: Simpson, JM creators_name: Smith, DJB creators_name: Spaans, M creators_name: Swinbank, AM creators_name: Symeonidis, M creators_name: Targett, T creators_name: Valiante, E creators_name: Viero, M creators_name: Wang, L creators_name: Willott, CJ creators_name: Zemcov, M title: The SCUBA-2 Cosmology Legacy Survey: demographics of the 450-mu m population ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F63 keywords: Galaxies: evolution, galaxies: starburst, submillimetre: galaxies, STAR-FORMING GALAXIES, DEEP FIELD-SOUTH, ULTRALUMINOUS INFRARED GALAXIES, DEGREE EXTRAGALACTIC SURVEY, HIGH-REDSHIFT GALAXIES, EQUAL-TO 4, SUBMILLIMETER GALAXIES, MU-M, HERSCHEL-ATLAS, NUMBER COUNTS note: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. abstract: We investigate the multiwavelength properties of a sample of 450-μm-selected sources from the SCUBA-2 Cosmology Legacy Survey. A total of 69 sources were identified above 4σ in deep SCUBA-2 450-μm observations overlapping the UDS and COSMOS fields and covering 210 arcmin2 to a typical depth of σ450 = 1.5 mJy. Reliable cross-identifications are found for 58 sources (84 per cent) in Spitzer and Hubble Space Telescope WFC3/IR data. The photometric redshift distribution (dN/dz) of 450-μm-selected sources is presented, showing a broad peak in the redshift range 1 < z < 3 and a median of z = 1.4. Combining the SCUBA-2 photometry with Herschel SPIRE data from HerMES, the submm spectral energy distribution (SED) is examined via the use of modified blackbody fits, yielding aggregate values for the IR luminosity, dust temperature and emissivity of 〈LIR〉 = 1012 ± 0.8 L⊙, 〈TD〉 = 42 ± 11 K and 〈βD〉 = 1.6 ± 0.5, respectively. The relationship between these SED parameters and the physical properties of galaxies is investigated, revealing correlations between TD and LIR and between βD and both stellar mass and effective radius. The connection between the star formation rate (SFR) and stellar mass is explored, with 24 per cent of 450-μm sources found to be ‘starbursts’, i.e. displaying anomalously high specific SFRs. However, both the number density and observed properties of these ‘starburst’ galaxies are found to be consistent with the population of normal star-forming galaxies. date: 2013-11-21 date_type: published publisher: OXFORD UNIV PRESS official_url: http://dx.doi.org/10.1093/mnras/stt1577 vfaculties: VMPS oa_status: green full_text_type: pub language: eng primo: open primo_central: open_green article_type_text: Article verified: verified_manual elements_source: Scopus elements_id: 897771 doi: 10.1093/mnras/stt1577 lyricists_name: Page, Mathew lyricists_name: Symeonidis, Myrto lyricists_id: MJPAG55 lyricists_id: MSYME08 actors_name: Dewerpe, Marie actors_id: MDDEW97 actors_role: owner full_text_status: public publication: Monthly Notices of the Royal Astronomical Society volume: 436 number: 1 pagerange: 430-448 pages: 19 issn: 1365-2966 citation: Roseboom, IG; Dunlop, JS; Cirasuolo, M; Geach, JE; Smail, I; Halpern, M; van der Werf, P; ... Zemcov, M; + view all <#> Roseboom, IG; Dunlop, JS; Cirasuolo, M; Geach, JE; Smail, I; Halpern, M; van der Werf, P; Almaini, O; Arumugam, V; Asboth, V; Auld, R; Blain, A; Bremer, MN; Bock, J; Bowler, RAA; Buitrago, F; Chapin, E; Chapman, S; Chrysostomou, A; Clarke, C; Conley, A; Coppin, KEK; Danielson, ALR; Farrah, D; Glenn, J; Hatziminaoglou, E; Ibar, E; Ivison, RJ; Jenness, T; Van Kampen, E; Karim, A; Mackenzie, T; Marsden, G; Meijerink, R; Michalowski, MJ; Oliver, SJ; Page, MJ; Pearson, E; Scott, D; Simpson, JM; Smith, DJB; Spaans, M; Swinbank, AM; Symeonidis, M; Targett, T; Valiante, E; Viero, M; Wang, L; Willott, CJ; Zemcov, M; - view fewer <#> (2013) The SCUBA-2 Cosmology Legacy Survey: demographics of the 450-mu m population. Monthly Notices of the Royal Astronomical Society , 436 (1) pp. 430-448. 10.1093/mnras/stt1577 <https://doi.org/10.1093/mnras%2Fstt1577>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/1406148/1/Page_stt1577.pdf