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Engineering and Technology Colloquia Series

Engineering & Technology Colloquia: On SCUBA-2: A 10,000 bolometer submillimetre camera on the James Clerk Maxwell Telescope

Presented by: Tim Jenness  (Joint Astronomy Centre)
Category: Engineering Colloquia   Duration: 1 hour   Broadcast date: October 11, 2012
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SCUBA-2 is a new submillimetre bolometer array operating on the James Clerk Maxwell Telescope in Hawaii. SCUBA-2 is the world's largest submillimetre camera, with 10,000 pixels. It can observe simultaneously at 450 and 850 microns and has a field-of-view of 43 square arcminutes. The instrument has been in regular use since September 2011 and the JCMT Legacy Survey has recently commenced. This talk will give an overview of the instrument, describe its observing modes and present some initial science highlights, including a description of the Legacy Surveys. I will also discuss the difficulties of observing in the submillimetre from the ground and details of the map-making software required to remove the atmospheric and instrumental signatures from the data. SCUBA-2 data are archived at the Canadian Astronomy Data Centre in the JCMT Science Archive and reduced on a daily basis. Reduced products are shipped to the survey teams. We are currently extending the Science Archive to use the pipeline to combine multi-night data as it arrives at the archive to continually enhance the science products. Clump catalogues will be published as STC-S regions to allow easy visualizations of molecular clouds without requiring the full data set to be downloaded. Public data are made available through the VO interfaces at CADC.