MWA Epoch of Reionisation
The main science goal of the Murchison Widefield Array (MWA) is to make a statistical detection of the Epoch of Reionisation (EoR) via a deep integration of the redshifted 21cm hydrogen line over a 2000-square-degree field of view.
CAASTRO staff are key members of the EoR collaboration within the MWA Project. This team will obtain a significant dataset with the MWA 128T array to either detect or set limits on the detection of the HI signals from the Epoch of reionisation. Research is currently centred around a software effort to generate and tune an imaging and foreground subtraction pipeline, based on the MWA real-time system (RTS). Reaching the sensitivity required to detect the more probable EoR signatures will be extremely challenging, and the emphasis will be on reducing systematics and foregrounds, demonstrating one or more reliable EoR pipelines (using simulations and MWA data), and setting useful cosmological limits.
|Observations made using the Murchison Widefield Array (pictured above) will be used to attempt a statistical detection of the Epoch of Reionosation.