The EoR Sensitivity of the 128 Antenna Murchison Widefield Array

Details The EoR Sensitivity of the 128 Antenna Murchison Widefield Array The EoR Sensitivity of the 128 Antenna Murchison Widefield Array

Publishing date

2012-04-13

URL

arxiv.org/abs/1204.3111v2

Science

Astronomy and Astrophysics

Field

Astrophysics

SubField

Instrumentation and Methods for Astrophysics

Additional info

5 pages, 4 figures, 1 table, submitted to MNRAS Letters

Type

Scientific paper

Abstract

Using the planned antenna locations of the 128 antenna buildout of the Murchison Widefield Array (MWA), we accurately calculate its sensitivity to the Epoch of Reionization (EoR) power spectrum of redshifted 21 cm emission. Our calculation takes into account synthesis rotation, chromatic and asymmetrical baseline effects, and excludes modes that will be contaminated by foreground subtraction. With one full season of observation on two fields (900 and 700 hours), the MWA will be capable of a 14$\sigma$ detection of the EoR signal along with slope constraints.

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