HARP/ACSIS: A submillimetre spectral imaging system on the James Clerk Maxwell Telescope
This paper describes a new Heterodyne Array Receiver Programme (HARP) and Auto-Correlation Spectral Imaging System (ACSIS) that have recently been installed and commissioned on the James Clerk Maxwell Telescope (JCMT). The 16-element focal-plane array receiver, operating in the submillimetre from 32...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
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2009
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| author | Buckle, J Hills, R Smith, H Dent, W Bell, G Curtis, E Dace, R Gibson, H Graves, S Leech, J Richer, J Williamson, R Withington, S Yassin, G Bennett, R Hastings, P Laidlaw, I Lightfoot, J Burgess, T Dewdney, P Hovey, G Willis, A Redman, R Wooff, B Berry, D |
| author_facet | Buckle, J Hills, R Smith, H Dent, W Bell, G Curtis, E Dace, R Gibson, H Graves, S Leech, J Richer, J Williamson, R Withington, S Yassin, G Bennett, R Hastings, P Laidlaw, I Lightfoot, J Burgess, T Dewdney, P Hovey, G Willis, A Redman, R Wooff, B Berry, D |
| author_sort | Buckle, J |
| collection | OXFORD |
| description | This paper describes a new Heterodyne Array Receiver Programme (HARP) and Auto-Correlation Spectral Imaging System (ACSIS) that have recently been installed and commissioned on the James Clerk Maxwell Telescope (JCMT). The 16-element focal-plane array receiver, operating in the submillimetre from 325 to 375 GHz, offers high (three-dimensional) mapping speeds, along with significant improvements over single-detector counterparts in calibration and image quality. Receiver temperatures are $\sim$120 K across the whole band and system temperatures of $\sim$300K are reached routinely under good weather conditions. The system includes a single-sideband filter so these are SSB figures. Used in conjunction with ACSIS, the system can produce large-scale maps rapidly, in one or more frequency settings, at high spatial and spectral resolution. Fully-sampled maps of size 1 square degree can be observed in under 1 hour. The scientific need for array receivers arises from the requirement for programmes to study samples of objects of statistically significant size, in large-scale unbiased surveys of galactic and extra-galactic regions. Along with morphological information, the new spectral imaging system can be used to study the physical and chemical properties of regions of interest. Its three-dimensional imaging capabilities are critical for research into turbulence and dynamics. In addition, HARP/ACSIS will provide highly complementary science programmes to wide-field continuum studies, and produce the essential preparatory work for submillimetre interferometers such as the SMA and ALMA. |
| first_indexed | 2024-03-06T22:31:45Z |
| format | Journal article |
| id | oxford-uuid:58831101-a1fc-481d-8ee1-2df9b1b4150c |
| institution | University of Oxford |
| last_indexed | 2024-03-06T22:31:45Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:58831101-a1fc-481d-8ee1-2df9b1b4150c2022-03-26T17:03:55ZHARP/ACSIS: A submillimetre spectral imaging system on the James Clerk Maxwell TelescopeJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:58831101-a1fc-481d-8ee1-2df9b1b4150cSymplectic Elements at Oxford2009Buckle, JHills, RSmith, HDent, WBell, GCurtis, EDace, RGibson, HGraves, SLeech, JRicher, JWilliamson, RWithington, SYassin, GBennett, RHastings, PLaidlaw, ILightfoot, JBurgess, TDewdney, PHovey, GWillis, ARedman, RWooff, BBerry, DThis paper describes a new Heterodyne Array Receiver Programme (HARP) and Auto-Correlation Spectral Imaging System (ACSIS) that have recently been installed and commissioned on the James Clerk Maxwell Telescope (JCMT). The 16-element focal-plane array receiver, operating in the submillimetre from 325 to 375 GHz, offers high (three-dimensional) mapping speeds, along with significant improvements over single-detector counterparts in calibration and image quality. Receiver temperatures are $\sim$120 K across the whole band and system temperatures of $\sim$300K are reached routinely under good weather conditions. The system includes a single-sideband filter so these are SSB figures. Used in conjunction with ACSIS, the system can produce large-scale maps rapidly, in one or more frequency settings, at high spatial and spectral resolution. Fully-sampled maps of size 1 square degree can be observed in under 1 hour. The scientific need for array receivers arises from the requirement for programmes to study samples of objects of statistically significant size, in large-scale unbiased surveys of galactic and extra-galactic regions. Along with morphological information, the new spectral imaging system can be used to study the physical and chemical properties of regions of interest. Its three-dimensional imaging capabilities are critical for research into turbulence and dynamics. In addition, HARP/ACSIS will provide highly complementary science programmes to wide-field continuum studies, and produce the essential preparatory work for submillimetre interferometers such as the SMA and ALMA. |
| spellingShingle | Buckle, J Hills, R Smith, H Dent, W Bell, G Curtis, E Dace, R Gibson, H Graves, S Leech, J Richer, J Williamson, R Withington, S Yassin, G Bennett, R Hastings, P Laidlaw, I Lightfoot, J Burgess, T Dewdney, P Hovey, G Willis, A Redman, R Wooff, B Berry, D HARP/ACSIS: A submillimetre spectral imaging system on the James Clerk Maxwell Telescope |
| title | HARP/ACSIS: A submillimetre spectral imaging system on the James Clerk
Maxwell Telescope |
| title_full | HARP/ACSIS: A submillimetre spectral imaging system on the James Clerk
Maxwell Telescope |
| title_fullStr | HARP/ACSIS: A submillimetre spectral imaging system on the James Clerk
Maxwell Telescope |
| title_full_unstemmed | HARP/ACSIS: A submillimetre spectral imaging system on the James Clerk
Maxwell Telescope |
| title_short | HARP/ACSIS: A submillimetre spectral imaging system on the James Clerk
Maxwell Telescope |
| title_sort | harp acsis a submillimetre spectral imaging system on the james clerk maxwell telescope |
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