The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies

Tingay, S. J.; Goeke, R.; Bowman, Judd D.; Emrich, D.; Ord, S. M.; Mitchell, D. A.; Morales, M. F.; Booler, T.; Crosse, B.; Wayth, R. B.; Lonsdale, C. J.; Tremblay, S. E.; Pallot, D.; Colegate, T.; Wicenec, A.; Kudryavtseva, N. A.; Arcus, W.; Barnes, David G.; Bernardi, G.; Briggs, F.; Burns, S.; Bunton, John D.; Cappallo, R. J.; Corey, B. E.; Deshpande, A. A.; deSouza, L.; Gaensler, B. M.; Greenhill, L. J.; Hall, Peter J.; Hazelton, B. J.; Herne, D.; Hewitt, Jacqueline 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, Divya; Pathikulangara, Joseph; Prabu, T.; Remillard, Ronald A.; Rogers, A. E. E.; Roshi, D. Anish; Salah, J. E.; Sault, R. J.; Udaya-Shankar, N.; Schlagenhaufer, Franz; Srivani, K. S.; Stevens, J.; Subrahmanyan, R.; Waterson, M.; Webster, R. L.; Whitney, A. R.; Williams, A.; Williams, Christopher; Wyithe, J. Stuart B.

doi:10.1017/pasa.2012.007

articlePublications of the Astronomical Society of AustraliaJan 1, 2013BRONZE OA

The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies

SJS. J. Tingay RGR. Goeke JDJudd D. Bowman DED. Emrich SMS. M. Ord

Curtin University · ARC Centre of Excellence for All-sky Astrophysics · +21 more institutions

Indexed inarxivcrossref

Abstract

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…

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Keywords

Murchison meteorite
Observatory
Remote sensing
Optics
Physics
Bandwidth (computing)
Radio telescope
Radio astronomy

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