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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
The SCUBA half-degree extragalactic survey - II. Submillimetre maps, catalogue and number counts
Monthly Notices of the Royal Astronomical Society, Volume 372, No. 4, Year 2006
Notification
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Description
We present maps, source catalogue and number counts of the largest, most complete and unbiased extragalactic submillimetre survey: the 850-μm SCUBA Half-Degree Extragalactic Survey (SHADES). Using the Submillimetre Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope (JCMT), SHADES mapped two separate regions of sky: the Subaru/XMM-Newton Deep Field (SXDF) and the Lockman Hole East (LH). Encompassing 93 per cent of the overall acquired data (i.e. data taken up to 2004 February 1), these SCUBA maps cover 720 arcmin2 with a rms noise level of about 2 mJy and have uncovered > 100 submillimetre galaxies. In order to ensure the utmost robustness of the resulting source catalogue, data reduction was independently carried out by four subgroups within the SHADES team, providing an unprecedented degree of reliability with respect to other SCUBA catalogues available from the literature. Individual source lists from the four groups were combined to produce a robust 120-object SHADES catalogue; an invaluable resource for follow-up campaigns aiming to study the properties of a complete and consistent sample of submillimetre galaxies. For the first time, we present deboosted flux densities for each submillimetre galaxy found in a large survey. Extensive simulations and tests were performed separately by each group in order to confirm the robustness of the source candidates and to evaluate the effects of false detections, completeness and flux density boosting. Corrections for these effects were then applied to the data to derive the submillimetre galaxy source counts. SHADES has a high enough number of detected sources that meaningful differential counts can be estimated, unlike most submillimetre surveys which have to consider integral counts. We present differential and integral source number counts and find that the differential counts are better fit with a broken power law or a Schechter function than with a single power law; the SHADES data alone significantly show that a break is required at several mJy, although the precise position of the break is not well constrained. We also find that a 850-μm survey complete down to 2 mJy would resolve 20-30 per cent of the far-infrared background into point sources. © 2006 RAS.
Authors & Co-Authors
Coppin, Kristen E.K.
Canada, Vancouver
The University of British Columbia
Chapin, Edward L.
Canada, Vancouver
The University of British Columbia
Mexico, Puebla
Instituto Nacional de Astrofisica Optica y Electronica
Mortier, Angela M.J.
United Kingdom, Canterbury
University of Kent
Borys, Colin J.K.
United States, Pasadena
California Institute of Technology
James S. Dunlop, James S.
United Kingdom, Edinburgh
The University of Edinburgh
Halpern, Mark
Canada, Vancouver
The University of British Columbia
Hughes, David Handel
Mexico, Puebla
Instituto Nacional de Astrofisica Optica y Electronica
Pope, Alexandra
Canada, Vancouver
The University of British Columbia
Scott, Douglas J.
Canada, Vancouver
The University of British Columbia
Serjeant, Stephen B.G.
United Kingdom, Canterbury
University of Kent
Wagg, Jeff
Mexico, Puebla
Instituto Nacional de Astrofisica Optica y Electronica
United States, Cambridge
Harvard-smithsonian Center for Astrophysics
Alexander, David M.
United Kingdom, Cambridge
University of Cambridge
Almaini, Omar
United Kingdom, Nottingham
University of Nottingham
Aretxaga, Itziar
Mexico, Puebla
Instituto Nacional de Astrofisica Optica y Electronica
Best, Phillip N.
United Kingdom, Edinburgh
The University of Edinburgh
Blain, Andrew W.
United States, Pasadena
California Institute of Technology
Chapman, Scott C.
United States, Pasadena
California Institute of Technology
Clements, David L.
United Kingdom, London
Imperial College London
Dunne, Loretta
United Kingdom, Edinburgh
The University of Edinburgh
United Kingdom, Nottingham
University of Nottingham
Eales, Stephen A.
United Kingdom, Cardiff
Cardiff University
Edge, Alastair C.
United Kingdom, Durham
Durham University
Farrah, Duncan G.
United States, Ithaca
Cornell University
Gaztañaga, E.
Mexico, Puebla
Instituto Nacional de Astrofisica Optica y Electronica
Spain, Madrid
Consejo Superior de Investigaciones Científicas
Gear, Walter K.P.
United Kingdom, Cardiff
Cardiff University
Greve, T. R.
United States, Pasadena
California Institute of Technology
Ivison, Robert J.
United Kingdom, Edinburgh
The University of Edinburgh
United Kingdom, Edinburgh
Uk Astronomy Technology Centre
Jarvis, Matthew J.
United Kingdom, Oxford
University of Oxford
Jenness, Tim
United States, Honolulu
University Hawaii Institute for Astronomy
Lacey, Cedric G.
United Kingdom, Durham
Durham University
Robert Mann, Robert G.
United Kingdom, Edinburgh
The University of Edinburgh
Marsden, Gaelen
Canada, Vancouver
The University of British Columbia
Martínez-Sansigre, Alejo M.S.
United Kingdom, Oxford
University of Oxford
Oliver, Seb J.
United Kingdom, Brighton
University of Sussex
Page, Mathew J.
United Kingdom, London
University College London
Peacock, John A.
United Kingdom, Edinburgh
The University of Edinburgh
Pearson, Christopher P.
Japan, Sagamihara
Jaxa Institute of Space and Astronautical Science
Percival, Will J.
United Kingdom, Portsmouth
University of Portsmouth
Rawlings, Steve G.
United Kingdom, Oxford
University of Oxford
Rowan-Robinson, Michael
United Kingdom, London
Imperial College London
Seigar, Marc S.
United States, Honolulu
University Hawaii Institute for Astronomy
United States, Irvine
University of California, Irvine
Sekiguchi, Kazuhiro
Japan, Mitaka
National Institutes of Natural Sciences - National Astronomical Observatory of Japan
Silva, Laura
Italy, Trieste
Osservatorio Astronomico Di Trieste
Simpson, Chris J.S.M.
United Kingdom, Liverpool
Liverpool John Moores University
United Kingdom, Durham
Durham University
Smail, Ian R.
United Kingdom, Durham
Durham University
Stevens, Jason A.
United Kingdom, Hatfield
University of Hertfordshire
Vaccari, Mattia
United Kingdom, London
Imperial College London
Italy, Padua
Università Degli Studi Di Padova
van Kampen, Eelco V.
United Kingdom, Edinburgh
The University of Edinburgh
Austria, Innsbruck
Universität Innsbruck
Willott, Chris J.
Canada, Ottawa
National Research Council Canada
Statistics
Citations: 356
Authors: 48
Affiliations: 29
Identifiers
Doi:
10.1111/j.1365-2966.2006.10961.x
ISSN:
00358711
Study Design
Cross Sectional Study
Cohort Study
Study Approach
Quantitative