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(cosmology): cosmological parameters

Publications of the Astronomical Society of Australia (1)

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Cosmological Surveys with the Australian Square Kilometre Array Pathfinder
Part of
- Australian SKA Pathfinder
A. R. Duffy, A. Moss, L. Staveley-Smith
Journal:

Publications of the Astronomical Society of Australia / Volume 29 / Issue 2 / 2012

Published online by Cambridge University Press:

02 January 2013, pp. 202-211
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This is a design study into the capabilities of the Australian Square Kilometre Array Pathfinder in performing a full-sky low redshift neutral hydrogen survey, termed WALLABY, and the potential cosmological constraints one can attain from measurement of the galaxy power spectrum. We find that the full sky survey will likely attain 6 × 105 redshifts which, when combined with expected Planck CMB data, will constrain the Dark Energy equation of state to 20%, representing a coming of age for radio observations in creating cosmological constraints.