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:
--
复制
发表时间:
2011
期刊:
Publications Astronomical Society of Australia
影响因子:
--
通讯作者:
L. Staveley
L. Staveley
中科院分区:
--
文献类型:
--
作者:
A. Duffy;A. Moss;L. Staveley

文献摘要

被引文献

相似文献

摘要:这是一项设计研究,旨在研究澳大利亚平方公里阵列探路者执行全天低红移中性氢勘测(称为 WALLABY)的能力,以及通过测量星系功率谱可以获得的潜在宇宙学约束。我们发现,全天巡天可能会实现 6 × 105 红移,与预期的普朗克 CMB 数据相结合,会将暗能量状态方程限制为 20%,这代表射电观测在创建宇宙学约束方面的时代已经到来。
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.