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A new layout optimization technique for interferometric arrays, applied to the Murchison Widefield Array

Beardsley, A; Hazelton, B; Morales, Miguel F; Cappallo, Roger C; Goeke, R; Emrich, David; Lonsdale, Colin J; Arcus, W; Barnes, David G; Bernardi, G; Waterson, Mark; Bowman, J D; Bowman, Judd D; Deshpande, Avinash; Gaensler, B M; Greenhill, Lincoln; Kaplan, D L; Kincaid, Barton B; Prabu, T; Rogers, Alan; Roshi, Anish; Shankar, N.Udaya; Srivani, K. S.; Whitney, Alan; Williams, Andrew; Williams, Christopher L


Antenna layout is an important design consideration for radio interferometers because it determines the quality of the snapshot point spread function (PSF, or array beam). This is particularly true for experiments targeting the 21-cm Epoch of Reionization signal as the quality of the foreground subtraction depends directly on the spatial dynamic range and thus the smoothness of the baseline distribution. Nearly all sites have constraints on where antennas can be placed - even at the remote...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1111/j.1365-2966.2012.20878.x


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