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The EoR sensitivity of the Murchison Widefield Array

journal contribution
posted on 2023-05-17, 21:54 authored by Beardsley, AP, Hazelton, BJ, Morales, MF, Arcus, W, Barnes, D, Bernardi, G, Bowman, JD, Briggs, FH, Bunton, JD, Cappallo, RJ, Corey, BE, Deshpande, A, deSouza, L, Emrich, D, Gaensler, BM, Goeke, R, Greenhill, LJ, Herne, D, Hewitt, JN, Johnston-Hollitt, M, Kaplan, DL, Kasper, JC, Kincaid, BB, Koenig, R, Kratzenberg, E, Lonsdale, CJ, Lynch, MJ, McWhirter, SR, Mitchell, DA, Morgan, E, Oberoi, D, Ord, SM, Pathikulangara, J, Prabu, T, Remillard, RA, Rogers, AEE, Roshi, A, Salah, JE, Sault, RJ, Udaya Shankar, N, Srivani, KS, Stevens, J, Subrahmanyan, R, Tingay, SJ, Wayth, RB, Waterson, M, Webster, RL, Whitney, AR, Williams, A, Williams, CL, Wyithe, JSB
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).

History

Publication title

Monthly Notices of the Royal Astronomical Society: Letters

Volume

429

Pagination

L5-L9

ISSN

1745-3933

Department/School

School of Natural Sciences

Publisher

Oxford University Press

Place of publication

United Kingdom

Rights statement

Copyright 2012 the authors

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the physical sciences

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