Journal article
Dark-ages reionization and galaxy formation simulation V: Morphology and statistical signatures of reionization
PM Geil, SJ Mutch, GB Poole, PW Angel, AR Duffy, A Mesinger, JSB Wyithe
Monthly Notices of the Royal Astronomical Society | OXFORD UNIV PRESS | Published : 2016
Abstract
We use the Dark-ages, Reionization And Galaxy formation Observables from Numerical Simulations (DRAGONS) framework to investigate the effect of galaxy formation physics on the morphology and statistics of ionized hydrogen (H II) regions during the Epoch of Reioinization (EoR). DRAGONS self-consistently couples a semi-analytic galaxy formation model with the inhomogeneous ionizing UV background, and can therefore be used to study the dependence of morphology and statistics of reionization on feedback phenomena of the ionizing source galaxy population. Changes in galaxy formation physics modify the sizes of HII regions and the amplitude and shape of 21-cm power spectra. Of the galaxy physics i..
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Awarded by Horizon 2020 Framework Programme
Funding Acknowledgements
This work was supported by the Victorian Life Sciences Computation Initiative (VLSCI), grant reference UOM0005, on its Peak Computing Facility hosted at The University of Melbourne, an initiative of the Victorian Government. Part of this work was performed on the gSTAR national facility at Swinburne University of Technology. gSTAR is funded by Swinburne University of Technology and the Australian Governments Education Investment Fund. AM acknowledges support from the European Research Council (ERC) under the European Unions Horizon 2020 research and innovation program (grant agreement No 638809 AIDA). This research program is funded by the Australian Research Council through the ARC Laureate Fellowship FL110100072 awarded to JSBW. Finally. we would like to thank the anonymous referee for their constructive comments which helped to improve the paper.