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dc.contributor.authorWayth, Randall
dc.contributor.authorTingay, S.
dc.contributor.authorTrott, Cathryn
dc.contributor.authorEmrich, David
dc.contributor.authorJohnston-Hollitt, M.
dc.contributor.authorMcKinley, B.
dc.contributor.authorGaensler, B.
dc.contributor.authorBeardsley, A.
dc.contributor.authorBooler, T.
dc.contributor.authorCrosse, B.
dc.contributor.authorFranzen, T.
dc.contributor.authorHorsley, L.
dc.contributor.authorKaplan, D.
dc.contributor.authorKenney, D.
dc.contributor.authorMorales, M.
dc.contributor.authorPallot, D.
dc.contributor.authorSleap, G.
dc.contributor.authorSteele, K.
dc.contributor.authorWalker, M.
dc.contributor.authorWilliams, A.
dc.contributor.authorWu, C.
dc.contributor.authorCairns, I.
dc.contributor.authorFilipovic, M.
dc.contributor.authorJohnston, S.
dc.contributor.authorMurphy, T.
dc.contributor.authorQuinn, P.
dc.contributor.authorStaveley-Smith, L.
dc.contributor.authorWebster, R.
dc.contributor.authorWyithe, J.
dc.identifier.citationWayth, R. and Tingay, S. and Trott, C. and Emrich, D. and Johnston-Hollitt, M. and McKinley, B. and Gaensler, B. et al. 2018. The Phase II Murchison Widefield Array: Design overview. Publications of the Astronomical Society of Australia. 35.

We describe the motivation and design details of the "Phase II" upgrade of the Murchison Widefield Array (MWA) radio telescope. The expansion doubles to 256 the number of antenna tiles deployed in the array. The new antenna tiles enhance the capabilities of the MWA in several key science areas. Seventy-two of the new tiles are deployed in a regular configuration near the existing MWA core. These new tiles enhance the surface brightness sensitivity of the MWA and will improve the ability of the MWA to estimate the slope of the Epoch of Reionisation power spectrum by a factor of ~3.5. The remaining 56 tiles are deployed on long baselines, doubling the maximum baseline of the array and improving the array u,v coverage. The improved imaging capabilities will provide an order of magnitude improvement in the noise floor of MWA continuum images. The upgrade retains all of the features that have underpinned the MWA's success (large field-of-view, snapshot image quality, pointing agility) and boosts the scientific potential with enhanced imaging capabilities and by enabling new calibration strategies.

dc.publisherCambridge University Press
dc.titleThe Phase II Murchison Widefield Array: Design overview
dc.typeJournal Article
dcterms.source.titlePublications of the Astronomical Society of Australia

© Astronomical Society of Australia 2018 published by Cambridge University Press.

curtin.departmentCurtin Institute of Radio Astronomy (Physics)
curtin.accessStatusOpen access

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