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Interferometric Imaging with the 32 Element Murchison Wide-Field Array

Ord, Steve; Mitchell, Daniel A; Wayth, Randall B; Greenhill, Lincoln; Bernardi, G; Gleadow, S; Edgar, R. G.; Clark , M. A; Allen, G; Arcus, W; Benkevitch, Leonid; Briggs, Franklin; Kocz, J.; Kowald, Errol; Vaccarella, Annino; Waterson, Mark

Description

The Murchison Wide-Field Array (MWA) is a low-frequency radio telescope, currently under construction, intended to search for the spectral signature of the epoch of reionization (EOR) and to probe the structure of the solar corona. Sited in western Australia, the full MWA will comprise 8192 dipoles grouped into 512 tiles and will be capable of imaging the sky south of 40° declination, from 80 MHz to 300 MHz with an instantaneous field of view that is tens of degrees wide and a resolution of a...[Show more]

dc.contributor.authorOrd, Steve
dc.contributor.authorMitchell, Daniel A
dc.contributor.authorWayth, Randall B
dc.contributor.authorGreenhill, Lincoln
dc.contributor.authorBernardi, G
dc.contributor.authorGleadow, S
dc.contributor.authorEdgar, R. G.
dc.contributor.authorClark , M. A
dc.contributor.authorAllen, G
dc.contributor.authorArcus, W
dc.contributor.authorBenkevitch, Leonid
dc.contributor.authorBriggs, Franklin
dc.contributor.authorKocz, J.
dc.contributor.authorKowald, Errol
dc.contributor.authorVaccarella, Annino
dc.contributor.authorWaterson, Mark
dc.date.accessioned2015-12-08T22:40:12Z
dc.identifier.issn0004-6280
dc.identifier.urihttp://hdl.handle.net/1885/36402
dc.description.abstractThe Murchison Wide-Field Array (MWA) is a low-frequency radio telescope, currently under construction, intended to search for the spectral signature of the epoch of reionization (EOR) and to probe the structure of the solar corona. Sited in western Australia, the full MWA will comprise 8192 dipoles grouped into 512 tiles and will be capable of imaging the sky south of 40° declination, from 80 MHz to 300 MHz with an instantaneous field of view that is tens of degrees wide and a resolution of a few arcminutes. A 32 station prototype of the MWA has been recently commissioned and a set of observations has been taken that exercise the whole acquisition and processing pipeline. We present Stokes /, Q, and U images from two ~4 hr integrations of a field 20° wide centered on Pictoris A. These images demonstrate the capacity and stability of a real-time calibration and imaging technique employing the weighted addition of warped snapshots to counter extreme wide-field imaging distortions.
dc.publisherUniversity of Chicago Press
dc.sourcePublications of the Astronomical Society of the Pacific
dc.titleInterferometric Imaging with the 32 Element Murchison Wide-Field Array
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume122
dc.date.issued2010
local.identifier.absfor020102 - Astronomical and Space Instrumentation
local.identifier.ariespublicationu3356449xPUB136
local.type.statusPublished Version
local.contributor.affiliationOrd, Steve, Harvard University
local.contributor.affiliationMitchell, Daniel A, Curtin University of Technology
local.contributor.affiliationWayth, Randall B, Harvard University
local.contributor.affiliationGreenhill, Lincoln, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationBernardi, G, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationGleadow, S, University of Melbourne
local.contributor.affiliationEdgar, R. G., Initiative for Innovative Computing
local.contributor.affiliationClark , M. A, Harvard-Smithsonian Center for Astrophysics
local.contributor.affiliationAllen, G, CSIRO, Australia Telescope National Facility
local.contributor.affiliationArcus, W, Curtin University of Technology
local.contributor.affiliationBenkevitch, Leonid, Haystack Observatory
local.contributor.affiliationBriggs, Franklin, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationKocz, J., College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationKowald, Errol, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationVaccarella, Annino, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationWaterson, Mark, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.issue897
local.bibliographicCitation.startpage1353
local.bibliographicCitation.lastpage1366
local.identifier.doi10.1086/657160
dc.date.updated2015-12-08T10:21:53Z
local.identifier.scopusID2-s2.0-78649887742
CollectionsANU Research Publications

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