@inproceedings{c0625605cbc243fd998dfa1ef47cd894,
title = "Observing neutral hydrogen above redshift 6: The {"}global{"} Perspective",
abstract = "Above redshift 6, the dominant source of neutral hydrogen in the Universe shifts from localized clumps in and around galaxies and filaments to a pervasive, diffuse component of the intergalactic medium (IGM). This transition tracks the global neutral fraction of hydrogen in the IGM and can be studied, in principle, through the redshifted 21 cm hyperfine transition line. During the last half of the reionization epoch, the mean (global) brightness temperature of the redshifted 21 cm emission is proportional to the neutral fraction, but at earlier times (10",
keywords = "Cosmology, Hydrogen, Intergalactic medium, Reionization",
author = "Bowman, {Judd D.} and Rogers, {Alan E.E.} and Hewitt, {Jacqueline N.}",
year = "2008",
doi = "10.1063/1.2973620",
language = "English (US)",
isbn = "9780735405585",
series = "AIP Conference Proceedings",
pages = "87--89",
booktitle = "The Evolution of Galaxies Through the Neutral Hydrogen Window",
note = "The Evolution of Galaxies Through the Neutral Hydrogen Window ; Conference date: 01-02-2008 Through 03-02-2008",
}