Journal article
Dark-ages reionization and galaxy formation simulation - XII. Bubbles at dawn
PM Geil, SJ Mutch, GB Poole, AR Duffy, A Mesinger, JSB Wyithe
Monthly Notices of the Royal Astronomical Society | OXFORD UNIV PRESS | Published : 2017
Abstract
The direct detection of regions of ionized hydrogen (H II) has been suggested as a promising probe of cosmic reionization. Observing the redshifted 21-cm signal of hydrogen from the epoch of reionization (EoR) is a key scientific driver behind new-generation, low-frequency radio interferometers.We investigate the feasibility of combining low-frequency observations with the Square Kilometre Array and near infra-red survey data of the Wide-Field Infrared Survey Telescope to detect cosmic reionization by imaging HII bubbles surrounding massive galaxies during the cosmic dawn. While individual bubbles will be too small to be detected, we find that by stacking redshifted 21-cm spectra centred on ..
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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 programme (grant agreement No 638809 AIDA). This research was funded by the Australian Research Council through the ARC Laureate Fellowship FL110100072 awarded to JSBW. Parts of this research was conducted by the Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), through project number CE110001020 (PMG). Finally, we would like to thank the anonymous referees for their constructive comments which helped to improve this paper.