Interferometric imaging with the 32 element murchison wide-field array

S. M. Ord, D. A. Mitchell, R. B. Wayth, L. J. Greenhill, G. Bernardi, S. Gleadow, R. G. Edgar, M. A. Clark, G. Allen, W. Arcus, L. Benkevitch, Judd Bowman, F. H. Briggs, J. D. Bunton, S. Burns, R. J. Cappallo, W. A. Coles, B. E. Corey, L. DeSouza, S. S. Doeleman & 39 others M. Derome, A. Deshpande, D. Emrich, R. Goeke, M. R. Gopalakrishna, D. Herne, J. N. Hewitt, P. A. Kamini, D. L. Kaplan, J. C. Kasper, B. B. Kincaid, J. Kocz, E. Kowald, E. Kratzenberg, D. Kumar, C. J. Lonsdale, M. J. Lynch, S. R. McWhirter, S. Madhavi, M. Matejek, M. F. Morales, E. Morgan, D. Oberoi, J. Pathikulangara, T. Prabu, A. E E Rogers, A. Roshi, J. E. Salah, A. Schinkel, N. Udaya Shankar, K. S. Srivani, J. Stevens, S. J. Tingay, A. Vaccarella, M. Waterson, R. L. Webster, A. R. Whitney, A. Williams, C. Williams

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

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 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.

Original languageEnglish (US)
Pages (from-to)1353-1366
Number of pages14
JournalPublications of the Astronomical Society of the Pacific
Volume122
Issue number897
DOIs
StatePublished - Nov 2010
Externally publishedYes

Fingerprint

declination
spectral signatures
tiles
solar corona
radio telescopes
physical exercise
field of view
imaging techniques
corona
sky
acquisition
counters
stations
prototypes
time measurement
probe
radio
dipoles
low frequencies
calibration

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Ord, S. M., Mitchell, D. A., Wayth, R. B., Greenhill, L. J., Bernardi, G., Gleadow, S., ... Williams, C. (2010). Interferometric imaging with the 32 element murchison wide-field array. Publications of the Astronomical Society of the Pacific, 122(897), 1353-1366. https://doi.org/10.1086/657160

Interferometric imaging with the 32 element murchison wide-field array. / Ord, S. M.; Mitchell, D. A.; Wayth, R. B.; Greenhill, L. J.; Bernardi, G.; Gleadow, S.; Edgar, R. G.; Clark, M. A.; Allen, G.; Arcus, W.; Benkevitch, L.; Bowman, Judd; Briggs, F. H.; Bunton, J. D.; Burns, S.; Cappallo, R. J.; Coles, W. A.; Corey, B. E.; DeSouza, L.; Doeleman, S. S.; Derome, M.; Deshpande, A.; Emrich, D.; Goeke, R.; Gopalakrishna, M. R.; Herne, D.; Hewitt, J. N.; Kamini, P. A.; Kaplan, D. L.; Kasper, J. C.; Kincaid, B. B.; Kocz, J.; Kowald, E.; Kratzenberg, E.; Kumar, D.; Lonsdale, C. J.; Lynch, M. J.; McWhirter, S. R.; Madhavi, S.; Matejek, M.; Morales, M. F.; Morgan, E.; Oberoi, D.; Pathikulangara, J.; Prabu, T.; Rogers, A. E E; Roshi, A.; Salah, J. E.; Schinkel, A.; Shankar, N. Udaya; Srivani, K. S.; Stevens, J.; Tingay, S. J.; Vaccarella, A.; Waterson, M.; Webster, R. L.; Whitney, A. R.; Williams, A.; Williams, C.

In: Publications of the Astronomical Society of the Pacific, Vol. 122, No. 897, 11.2010, p. 1353-1366.

Research output: Contribution to journalArticle

Ord, SM, Mitchell, DA, Wayth, RB, Greenhill, LJ, Bernardi, G, Gleadow, S, Edgar, RG, Clark, MA, Allen, G, Arcus, W, Benkevitch, L, Bowman, J, Briggs, FH, Bunton, JD, Burns, S, Cappallo, RJ, Coles, WA, Corey, BE, DeSouza, L, Doeleman, SS, Derome, M, Deshpande, A, Emrich, D, Goeke, R, Gopalakrishna, MR, Herne, D, Hewitt, JN, Kamini, PA, Kaplan, DL, Kasper, JC, Kincaid, BB, Kocz, J, Kowald, E, Kratzenberg, E, Kumar, D, Lonsdale, CJ, Lynch, MJ, McWhirter, SR, Madhavi, S, Matejek, M, Morales, MF, Morgan, E, Oberoi, D, Pathikulangara, J, Prabu, T, Rogers, AEE, Roshi, A, Salah, JE, Schinkel, A, Shankar, NU, Srivani, KS, Stevens, J, Tingay, SJ, Vaccarella, A, Waterson, M, Webster, RL, Whitney, AR, Williams, A & Williams, C 2010, 'Interferometric imaging with the 32 element murchison wide-field array', Publications of the Astronomical Society of the Pacific, vol. 122, no. 897, pp. 1353-1366. https://doi.org/10.1086/657160
Ord SM, Mitchell DA, Wayth RB, Greenhill LJ, Bernardi G, Gleadow S et al. Interferometric imaging with the 32 element murchison wide-field array. Publications of the Astronomical Society of the Pacific. 2010 Nov;122(897):1353-1366. https://doi.org/10.1086/657160
Ord, S. M. ; Mitchell, D. A. ; Wayth, R. B. ; Greenhill, L. J. ; Bernardi, G. ; Gleadow, S. ; Edgar, R. G. ; Clark, M. A. ; Allen, G. ; Arcus, W. ; Benkevitch, L. ; Bowman, Judd ; Briggs, F. H. ; Bunton, J. D. ; Burns, S. ; Cappallo, R. J. ; Coles, W. A. ; Corey, B. E. ; DeSouza, L. ; Doeleman, S. S. ; Derome, M. ; Deshpande, A. ; Emrich, D. ; Goeke, R. ; Gopalakrishna, M. R. ; Herne, D. ; Hewitt, J. N. ; Kamini, P. A. ; Kaplan, D. L. ; Kasper, J. C. ; Kincaid, B. B. ; Kocz, J. ; Kowald, E. ; Kratzenberg, E. ; Kumar, D. ; Lonsdale, C. J. ; Lynch, M. J. ; McWhirter, S. R. ; Madhavi, S. ; Matejek, M. ; Morales, M. F. ; Morgan, E. ; Oberoi, D. ; Pathikulangara, J. ; Prabu, T. ; Rogers, A. E E ; Roshi, A. ; Salah, J. E. ; Schinkel, A. ; Shankar, N. Udaya ; Srivani, K. S. ; Stevens, J. ; Tingay, S. J. ; Vaccarella, A. ; Waterson, M. ; Webster, R. L. ; Whitney, A. R. ; Williams, A. ; Williams, C. / Interferometric imaging with the 32 element murchison wide-field array. In: Publications of the Astronomical Society of the Pacific. 2010 ; Vol. 122, No. 897. pp. 1353-1366.
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TY - JOUR

T1 - Interferometric imaging with the 32 element murchison wide-field array

AU - Ord, S. M.

AU - Mitchell, D. A.

AU - Wayth, R. B.

AU - Greenhill, L. J.

AU - Bernardi, G.

AU - Gleadow, S.

AU - Edgar, R. G.

AU - Clark, M. A.

AU - Allen, G.

AU - Arcus, W.

AU - Benkevitch, L.

AU - Bowman, Judd

AU - Briggs, F. H.

AU - Bunton, J. D.

AU - Burns, S.

AU - Cappallo, R. J.

AU - Coles, W. A.

AU - Corey, B. E.

AU - DeSouza, L.

AU - Doeleman, S. S.

AU - Derome, M.

AU - Deshpande, A.

AU - Emrich, D.

AU - Goeke, R.

AU - Gopalakrishna, M. R.

AU - Herne, D.

AU - Hewitt, J. N.

AU - Kamini, P. A.

AU - Kaplan, D. L.

AU - Kasper, J. C.

AU - Kincaid, B. B.

AU - Kocz, J.

AU - Kowald, E.

AU - Kratzenberg, E.

AU - Kumar, D.

AU - Lonsdale, C. J.

AU - Lynch, M. J.

AU - McWhirter, S. R.

AU - Madhavi, S.

AU - Matejek, M.

AU - Morales, M. F.

AU - Morgan, E.

AU - Oberoi, D.

AU - Pathikulangara, J.

AU - Prabu, T.

AU - Rogers, A. E E

AU - Roshi, A.

AU - Salah, J. E.

AU - Schinkel, A.

AU - Shankar, N. Udaya

AU - Srivani, K. S.

AU - Stevens, J.

AU - Tingay, S. J.

AU - Vaccarella, A.

AU - Waterson, M.

AU - Webster, R. L.

AU - Whitney, A. R.

AU - Williams, A.

AU - Williams, C.

PY - 2010/11

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