Journal article
Generating extremely large-volume reionization simulations
B Greig, JSB Wyithe, SG Murray, SJ Mutch, CM Trott
Monthly Notices of the Royal Astronomical Society | Published : 2022
Abstract
Preparing for a first detection of the 21-cm signal during reionization by large-scale interferometer experiments requires rigorous testing of the data analysis and reduction pipelines. Validating that these do not erroneously add/remove features mimicking the signal (e.g. from side lobes or large-scale power leakage) requires simulations extending beyond the primary field of view. However, the Murchison Wide Field Array (MWA) with a field of view of ∼252 deg2 would require simulations spanning several Gpcs, which are currently infeasible. To address this, we developed a simplified version of the seminumerical reionization simulation code 21cmfast, sacrificing some physical accuracy (linear ..
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Grants
Awarded by ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D)
Awarded by ARC Future Fellowship
Awarded by Australian Research Council
Funding Acknowledgements
We thank the anonymous referee for their insightful comments. We also thank Nichole Barry, Sambit Giri, Garrelt Mellema, Andrei Mesinger, Rajesh Mondal, and Rachel Webster for useful discussions relating to this work. Parts of this research were supported by the ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. CMT is supported by an ARC Future Fellowship under grant FT180100321. Parts of this work were performed on the OzSTAR national facility at Swinburne University of Technology. OzSTAR is funded by Swinburne University of Technology.