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, S. 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.

Author(s)

Cappallo, Roger J.; Corey, Brian E.; Goeke, Robert F.; Hewitt, Jacqueline N.; Kincaid, Barton B.; ... Show more

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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 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).

Date issued

2012-11

URI

http://hdl.handle.net/1721.1/88452

Department

Haystack Observatory; MIT Kavli Institute for Astrophysics and Space Research

Journal

Monthly Notices of the Royal Astronomical Society: Letters

Publisher

Oxford University Press

Citation

Beardsley, A. P., B. J. Hazelton, M. F. Morales, W. Arcus, D. Barnes, G. Bernardi, J. D. Bowman, et al. “The EoR Sensitivity of the Murchison Widefield Array.” Monthly Notices of the Royal Astronomical Society: Letters 429, no. 1 (February 11, 2013): L5–L9.

Version: Author's final manuscript

ISSN

1745-3925

1745-3933

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