Cosmological surveys with the Australian Square Kilometre Array Pathfinder

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 0.6 million 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.

10 pages, 6 figures, accepted in PASA, updated to match published version

References in corpus (7)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• The Weak Clustering of Gas-Rich Galaxies
• Galaxy redshift surveys selected by neutral hydrogen using FAST
• The Angular Power Spectra of Photometric SDSS LRGs
• Determining neutrino properties using future galaxy redshift surveys
• Peculiar Velocities into the Next Generation: Cosmological Parameters From Large Surveys without Bias from Nonlinear Structure

Cited by in corpus (17)

• Shark: introducing an open source, free and flexible semi-analytic model of galaxy formation
• WALLABY -- An SKA Pathfinder HI Survey
• Predictions for ASKAP Neutral Hydrogen Surveys
• The 6dF Galaxy Survey: Fundamental Plane Data
• An assessment of the "too big to fail" problem for field dwarf galaxies in view of baryonic feedback effects
• Spectroscopic Confusion: Its Impact on Current and Future Extragalactic HI Surveys
• A first attempt to differentiate between modified gravity and modified inertia with galaxy rotation curves
• Equilibrium Star Formation In A Constant Q Disk: Model Optimisation and Initial Tests
• An HI intensity mapping survey with a Phased Array Feed
• Extragalactic sources in Cosmic Microwave Background maps
• Predictions for the FAST telescope's CRAFTS Extra-Galactic HI Survey
• Comparing H-alpha and HI Surveys as Means to a Complete Local Galaxy Catalog in the Advanced LIGO/Virgo Era
• Testing core creation in hydrodynamical simulations using the HI kinematics of field dwarfs
• Interferometric Cubelet Stacking to Recover H\,\textsc{i} Emission from Distant Galaxies
• Dark-ages reionization and galaxy formation simulation - IX. Economics of reionizing galaxies
• Upcoming SKA precursor surveys and sensitivity to HI mass function
• Joint Optical-HI mock catalogues and prospects for upcoming HI surveys