A new era of wide-field submillimetre imaging: on-sky performance of SCUBA-2

J. T. Dempsey, W. S. Holland, A. Chrysostomou, D.S. Berry, D. Bintley, E.L. Chapin, S.C. Craig, I.M. Coulson, G.R. Davis, P. Friberg, T. Jenness, A.G. Gibb, H.A.L. Parsons, D. Scott, H.S. Thomas, R.P.J. Tilanus, I. Robson, C.A. Walther

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)


SCUBA-2 is the largest submillimetre wide-field bolometric camera ever built. This 43 square arc- minute field-of-view instrument operates at two wavelengths (850 and 450 microns) and has been installed on the James Clerk Maxwell Telescope on Mauna Kea, Hawaii. SCUBA-2 has been successfully commissioned and operational for general science since October 2011. This paper presents an overview of the on-sky performance of the instrument during and since commissioning in mid- 2011. The on-sky noise characteristics and NEPs of the 450 μm and 850 μm arrays, with average yields of approximately 3400 bolometers at each wavelength, will be shown. The observing modes of the instrument and the on-sky calibration techniques are described. The culmination of these efforts has resulted in a scientifically powerful mapping camera with sensitivities that allow a square degree of sky to be mapped to 10 mJy/beam rms at 850 μm in 2 hours and 60 mJy/beam rms at 450 μm in 5 hours in the best weather
Original languageEnglish
Title of host publicationMillimeter, Submillimeter abd Far-Infrared Detectors and Instrumentation for Astronomy VI
EditorsWayne S. Holland
Publication statusPublished - Sept 2012

Publication series

NameProcs SPIE


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