Journal Article

A pilot study for the SCUBA-2 ‘All-Sky’ Survey

Todd Mackenzie, Filiberto G. Braglia, Andy G. Gibb, Douglas Scott, Tim Jenness, Stephen Serjeant, Mark Thompson, David Berry, Christopher M. Brunt, Edward Chapin, Antonio Chrysostomou, Dave Clements, Kristen Coppin, Frossie Economou, A. Evans, Per Friberg, Jane Greaves, T. Hill, Wayne Holland, R. J. Ivison, Johan H. Knapen, Neal Jackson, Gilles Joncas, Larry Morgan, Angela Mortier, Chris Pearson, Michele Pestalozzi, Alexandra Pope, John Richer, J. S. Urquhart, Mattia Vaccari, Bernd Weferling, Glenn White and Ming Zhu

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 415, issue 2, pages 1950-1960
Published in print August 2011 | ISSN: 0035-8711
Published online July 2011 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.18840.x
A pilot study for the SCUBA-2 ‘All-Sky’ Survey

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We have carried out a pilot study for the Submillimetre Common-User Bolometer Array 2 (SCUBA-2) ‘All-Sky’ Survey (SASSy), a wide and shallow mapping project at 850 μm, designed to find rare objects, both Galactic and extragalactic. Two distinct sets of exploratory observations were undertaken and used to test the SASSy approach and data-reduction pipeline. The first was a 0°.5 × 0°.5 map around the nearby galaxy NGC 2559. The galaxy was easily detected at 156 mJy, but no other convincing sources are present in the map. Comparison with other galaxies with similar wavelength coverage indicates that NGC 2559 has relatively warm dust. The second observations cover 1 deg2 around the W5-E H ii region. As well as diffuse structure in the map, a filtering approach was able to extract 27 compact sources with signal-to-noise ratio greater than 6. By matching with data at other wavelengths we can see that the SCUBA-2 data can be used to discriminate the colder cores. Together these observations show that the SASSy project will be able to meet its original goals of detecting new bright sources which will be ideal for follow-up observations with other facilities.

Keywords: surveys; submillimetre: galaxies; submillimetre: stars

Journal Article.  6480 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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