The EoR sensitivity of the Murchison Widefield Array

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. ; Udaya, Shankar N. ; 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. (2013) The EoR sensitivity of the Murchison Widefield Array Monthly Notices of the Royal Astronomical Society: Letters, 429 (1). L5-L9. ISSN 1745-3925

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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 redshifted 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, chromatic 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 14σ detection of the EoR signal with one full season of observation on two fields (900 and 700 h).

Item Type:Article
Source:Copyright of this article belongs to Oxford University Press.
Keywords:Instrumentation: Interferometers; Cosmology: Miscellaneous
ID Code:114275
Deposited On:21 May 2018 08:50
Last Modified:21 May 2018 08:50

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