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The EoR sensitivity of the Murchison Widefield Array


Beardsley, AP and Hazelton, BJ and Morales, MF and Arcus, W and Barnes, D and Bernardi, G and Bowman, JD and Briggs, FH and Bunton, JD and Cappallo, RJ and Corey, BE and Deshpande, A and deSouza, L and Emrich, D and Gaensler, BM and Goeke, R and Greenhill, LJ and Herne, D and Hewitt, JN and Johnston-Hollitt, M and Kaplan, DL and Kasper, JC and Kincaid, BB and Koenig, R and Kratzenberg, E and Lonsdale, CJ and Lynch, MJ and McWhirter, SR and Mitchell, DA and Morgan, E and Oberoi, D and Ord, SM and Pathikulangara, J and Prabu, T and Remillard, RA and Rogers, AEE and Roshi, A and Salah, JE and Sault, RJ and Udaya Shankar, N and Srivani, KS and Stevens, J and Subrahmanyan, R and Tingay, SJ and Wayth, RB and Waterson, M and Webster, RL and Whitney, AR and Williams, A and Williams, CL and Wyithe, JSB, The EoR sensitivity of the Murchison Widefield Array, Monthly Notices of the Royal Astronomical Society: Letters, 429, (1) pp. L5-L9. ISSN 1745-3933 (2013) [Refereed Article]

Copyright Statement

Copyright 2012 the authors

DOI: doi:10.1093/mnrasl/sls013


Using the final 128 antenna locations of the MurchisonWidefield 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 Details

Item Type:Refereed Article
Keywords:instrumentation, interferometers, cosmology
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Astronomical instrumentation
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Stevens, J (Dr Jamie Stevens)
ID Code:88665
Year Published:2013
Web of Science® Times Cited:62
Deposited By:Mathematics and Physics
Deposited On:2014-02-12
Last Modified:2016-10-19

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