期刊
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA
卷 29, 期 2, 页码 202-211出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1071/AS11013
关键词
(cosmology): cosmological parameters; galaxies: statistics; methods: numerical; radio lines: galaxies; telescopes
资金
- STFC [ST/G000417/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/G000417/1] Funding Source: researchfish
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 x 10(5) 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.
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