ASKAP Early Science utilised twelve antennas fitted with CSIRO’s Mk II phased array feeds (the instrument known as ASKAP-12). Observations were carried out in parallel with the deployment of Mk II phased array feeds on the remaining 24 ASKAP antennas.
DINGO’s observing program used the unique wide-field capabilities ASKAP to capture the emission of over 10,000 galaxies in two pointings in the GAMA G23 field:
View the ASKAP Early Science Program here. View information on the DINGO program here. Science results from this program can be found in Rhee et al. 2022.
VLA Survey of G09
Alongside these ASKAP-12 early observations, DINGO also carried out a VLA pathfinder program in the 2014B and 2016A semesters to observe the GAMA G09 field. Results from this work have been published in Chen et. al., 2021a and Chen et. al., 2021b.
Principal goals were to:
- Develop HI stacking methods for interferometric datasets
- Use HI stacking to sample a cosmologically representative volume and measure evolution in the neutral atomic hydrogen content of the Universe (ΩHI) over the past 4 Gyr
- Combine VLA HI data and GAMA group metrics to measure the dependance of HI content on environment (pair, group, filament, void, halo mass)
