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21cm tomography of the high-redshift universe with the Square Kilometer Array

Furlani, Thomas; Briggs, Franklin

Description

We discuss the prospects for "tomography" of the intergalactic medium (IGM) at high redshifts using the 21 cm transition of neutral hydrogen. Existing observational constraints on the epoch of reionization imply a complex ionization history that may require multiple generations of sources. The 21 cm transition provides a unique tool to probe this era in detail, because it does not suffer from saturation effects, retains full redshift information, and directly probes the IGM gas. Observations in...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
URI: http://hdl.handle.net/1885/81030
Source: New Astronomy Reviews
DOI: 10.1016/j.newar.2004.09.034

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