Cosmological Surveys with the Australian Square Kilometre Array Pathfinder
Cosmological Surveys with the Australian Square Kilometre Array Pathfinder
复制标题
使用澳大利亚平方公里阵列探路者进行宇宙学巡天
DOI:
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发表时间:
2011
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通讯作者:
L. Staveley
中科院分区:
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作者:
A. Duffy;A. Moss;L. Staveley
Abstract 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.