Looking At the Distant Universe with the MeerKAT Array (LADUMA)

Abstract

The MeerKAT (64 x 13.5m dish radio interferometer) is South Africa's precursor instrument for the Square Kilometre Array (SKA), exploring dish design, instrumentation, and the characteristics of a Karoo desert site and is projected to be on sky in 2016. One of two top-priority, Key Projects is a single deep field, integrating for 5000 hours total with the aim to detect neutral atomic hydrogen through its 21 cm line emission out to redshift unity and beyond. This first truly deep HI survey will help constrain fueling models for galaxy assembly and evolution. It will measure the evolution of the cosmic neutral gas density and its distribution over galaxies over cosmic time, explore evolution of the gas in galaxies, measure the Tully-Fisher relation, measure OH maser counts, and address many more topics. Here we present the observing strategy and envisaged science case for this unique deep field, which encompasses the Chandra Deep Field-South (and the footprints of GOODS, GEMS and several other surveys) to produce a singular legacy multi-wavelength data-set.

3 pages, 2 figures, to appear in the proceedings of IAU Symposium 284, "The Spectral Energy Distribution of Galaxies" (SED2011), 5-9 September 2011, Preston, UK, editors R.J. Tuffs & C.C.Popescu

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Cited by in corpus (24)

• The EAGLE simulations: atomic hydrogen associated with galaxies
• Tracing HI Beyond the Local Universe
• Neutral hydrogen (HI) gas content of galaxies at $z\approx 0.32$
• GMRT observation of neutral atomic hydrogen gas in the COSMOS field at $z\sim 0.37$
• An accurate low-redshift measurement of the cosmic neutral hydrogen density
• Ring Galaxies in the EAGLE Hydrodynamical Simulations
• Velocity-Density Correlations from the cosmicflows-3 Distance Catalog and the 2MASS Redshift Survey
• The baryonic Tully-Fisher relation in the Simba simulation
• Deep Investigation of Neutral Gas Origins (DINGO): HI stacking experiments with early science data
• Predicting the Neutral Hydrogen Content of Galaxies From Optical Data Using Machine Learning
• HISS, a new tool for H I stacking: application to NIBLES spectra
• The redshift evolution of the baryonic Tully-Fisher relation in Simba
• Measuring the HI mass function below the detection threshold
• What's Inside the Cone? Numerically reconstructing the metric from observations
• Radio Afterglows from Compact Binary Coalescences: Prospects for Next-Generation Telescopes
• Optimising commensality of radio continuum and spectral line observations in the era of the SKA
• The cosmic atomic hydrogen mass density as a function of mass and galaxy hierarchy from spectral stacking
• Synthetic data products for future HI galaxy surveys: a tool for characterising source confusion in spectral line stacking experiments
• A new approach for short-spacing correction of radio interferometric data sets
• BUDHIES V: The baryonic Tully-Fisher relation at z=0.2 based on direct HI detections
• The Atomic Hydrogen Content of Galaxies as a function of Group-Centric Radius
• Interferometric Cubelet Stacking to Recover H\,\textsc{i} Emission from Distant Galaxies
• Lightweight HI source finding for next generation radio surveys
• Survey-scale discovery-based research processes: Evaluating a bespoke visualisation environment for astronomical survey data