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Constraining the epoch of reionization with the variance statistic: Simulations of the LOFAR case

Patil, Ajinkya; Zaroubi, Saleem; Chapman, Emma; Jelic, Vibor; Harker, Geraint; Abdalla, Filipe B.; Asad, Khan; Bernardi, Gianni; Brentjens, Michiel A.; de Bruyn, A. G.; Bus, Sander; Offringa, Andre


Several experiments are underway to detect the cosmic-redshifted 21-cm signal from neutral hydrogen from the Epoch of Reionization (EoR). Due to their very low signal-to-noise ratio, these observations aim for a statistical detection of the signal by measuring its power spectrum. We investigate the extraction of the variance of the signal as a first step towards detecting and constraining the global history of the EoR. Signal variance is the integral of the signal's power spectrum, and it is...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stu1178


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