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The EoR Sensitivity of the Murchison Widefield Array

Authors :
Beardsley, A. P.
Hazelton, B. J.
Morales, M. F.
Arcus, W.
Barnes, D.
Bernardi, G.
Bowman, J. D.
Briggs, F. H.
Bunton, J. D.
Cappallo, R. J.
Corey, B. E.
Deshpande, A.
deSouza, L.
Emrich, D.
Gaensler, B. M.
Goeke, R.
Greenhill, L. J.
Herne, D.
Hewitt, J. N.
Johnston-Hollitt, M.
Kaplan, D. L.
Kasper, J. C.
Kincaid, B. B.
Koenig, R.
Kratzenberg, E.
Lonsdale, C. J.
Lynch, M. J.
McWhirter, S. R.
Mitchell, D. A.
Morgan, E.
Oberoi, D.
Ord, S. M.
Pathikulangara, J.
Prabu, T.
Remillard, R. A.
Rogers, A. E. E.
Roshi, A.
Salah, J. E.
Sault, R. J.
Shankar, N. Udaya
Srivani, K. S.
Stevens, J.
Subrahmanyan, R.
Tingay, S. J.
Wayth, R. B.
Waterson, M.
Webster, R. L.
Whitney, A. R.
Williams, A.
Williams, C. L.
Wyithe, J. S. B.
Publication Year :
2012

Abstract

Using the final 128 antenna locations of the Murchison Widefield Array (MWA), we calculate its sensitivity to the Epoch of Reionization (EoR) power spectrum of red- shifted 21 cm emission for a fiducial model and provide the tools to calculate the sensitivity for any model. Our calculation takes into account synthesis rotation, chro- matic and asymmetrical baseline effects, and excludes modes that will be contaminated by foreground subtraction. For the fiducial model, the MWA will be capable of a 14{\sigma} detection of the EoR signal with one full season of observation on two fields (900 and 700 hours).<br />Comment: 5 pages, 4 figures, 1 table, Accepted for publication in MNRAS Letters. Supplementary material will be available in the published version, or by contacting the authors

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1204.3111
Document Type :
Working Paper
Full Text :
https://doi.org/10.1093/mnrasl/sls013