Tingay, S. J. ; Goeke, R. ; Bowman, J. D. ; Emrich, D. ; Ord, S. M. ; Mitchell, D. A. ; Morales, M. F. ; Booler, T. ; Crosse, B. ; Wayth, R. B. ; Lonsdale, C. J. ; Tremblay, S. ; Pallot, D. ; Colegate, T. ; Wicenec, A. ; Kudryavtseva, N. ; Arcus, W. ; Barnes, D. ; Bernardi, G. ; Briggs, F. ; Burns, S. ; Bunton, J. D. ; Cappallo, R. J. ; Corey, B. E. ; Deshpande, A. ; Desouza, L. ; Gaensler, B. M. ; Greenhill, L. J. ; Hall, P. J. ; Hazelton, B. J. ; Herne, D. ; Hewitt, J. N. ; Johnston-Hollitt, M. ; Kaplan, D. L. ; Kasper, J. C. ; Kincaid, B. B. ; Koenig, R. ; Kratzenberg, E. ; Lynch, M. J. ; Mckinley, B. ; Mcwhirter, S. R. ; Morgan, E. ; Oberoi, D. ; Pathikulangara, J. ; Prabu, T. ; Remillard, R. A. ; Rogers, A. E. E. ; Roshi, A. ; Salah, J. E. ; Sault, R. J. ; Udaya-Shankar, N. ; Schlagenhaufer, F. ; Srivani, K. S. ; Stevens, J. ; Subrahmanyan, R. ; Waterson, M. ; Webster, R. L. ; Whitney, A. R. ; Williams, A. ; Williams, C. L. ; Wyithe, J. S. B. (2013) The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies Publications of the Astronomical Society of Australia, 30 . Article ID e007. ISSN 1323-3580
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Official URL: https://www.cambridge.org/core/journals/publicatio...
Related URL: http://dx.doi.org/10.1017/pasa.2012.007
Abstract
The Murchison Widefield Array (MWA) is one of three Square Kilometre Array Precursor telescopes and is located at the Murchison Radio-astronomy Observatory in the Murchison Shire of the mid-west of Western Australia, a location chosen for its extremely low levels of radio frequency interference. The MWA operates at low radio frequencies, 80–300 MHz, with a processed bandwidth of 30.72 MHz for both linear polarisations and consists of 128 aperture arrays (known as tiles) distributed over a ∼3-km diameter area. Novel hybrid hardware/software correlation and a real-time imaging and calibration systems comprise the MWA signal processing backend. In this paper, the as-built MWA is described both at a system and sub-system level, the expected performance of the array is presented and the science goals of the instrument are summarized.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Cambridge University Press. |
| Keywords: | Instrumentation: Interferometers; Techniques: Image Processing; Techniques: Interferometric — Radio Continuum: General; Radio Lines: General |
| ID Code: | 114237 |
| Deposited On: | 21 May 2018 09:02 |
| Last Modified: | 21 May 2018 09:02 |
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