Exploring the HI Universe with ASKAP

Abstract

The survey speed of ASKAP makes it a prime instrument with which to survey the HI universe, enabling it to carry out both wide surveys of the entire sky, as well as deep surveys covering cosmologically representative volumes. Here, the use of ASKAP to study deep HI fields is discussed as proposed by the Deep Investigation of Neutral Gas Origins (DINGO) survey. This ASKAP science survey project anticipates observing in excess of 10^5 sources out to redshift z~0.4. Key science goals include: Omega_HI and its evolution, the cosmic web as traced by distributions such as the HI mass function and the 2pt correlation function, and the formation and evolution of galaxies. Science returns are maximised by targeting the GAMA survey regions, enabling the HI content of galaxies to be studied and understood in full context with all the major galactic constituents over the past 4 Gyr.

Panoramic Radio Astronomy conference, Groningen, The Netherlands; 2009 June 2-5

References in corpus (4)

• On the (Non)Evolution of HI Disks over Cosmic Time
• Simulation of the Cosmic Evolution of Atomic and Molecular Hydrogen in Galaxies
• The Weak Clustering of Gas-Rich Galaxies
• The Halo Occupation Distribution of HI Galaxies

Cited by in corpus (14)

• The ALFALFA HI mass function: A dichotomy in the low-mass slope and a locally suppressed 'knee' mass
• The EAGLE simulations: atomic hydrogen associated with galaxies
• An accurate low-redshift measurement of the cosmic neutral hydrogen density
• The HI Velocity Function: a test of cosmology or baryon physics?
• The Tully-Fisher Relation of COLD GASS Galaxies
• The influence of angular momentum and environment on the HI gas of late-type galaxies
• Unveiling the atomic hydrogen-halo mass relation via spectral stacking
• The neutral hydrogen distribution in large-scale haloes from 21-cm intensity maps
• The redshift evolution of the baryonic Tully-Fisher relation in Simba
• The cosmic atomic hydrogen mass density as a function of mass and galaxy hierarchy from spectral stacking
• The Atomic Hydrogen Content of Galaxies as a function of Group-Centric Radius
• Taking Saratoga from Space-Based Ground Sensors to Ground-Based Space Sensors
• Measuring Cosmic Density of Neutral Hydrogen via Stacking the DINGO-VLA Data
• The impact of JPEG2000 lossy compression on the scientific quality of radio astronomy imagery