A lower limit of Δz > 0.06 for the duration of the reionization epoch

Judd D. Bowman () and Alan E. E. Rogers
Additional contact information
Judd D. Bowman: Arizona State University, School of Earth and Space Exploration
Alan E. E. Rogers: Massachusetts Institute of Technology, Haystack Observatory

Nature, 2010, vol. 468, issue 7325, 796-798

Abstract: A new look at the reionization of the Universe A new generation of radio telescopes is making it possible to observe the redshifted 21-centimetre spectral line of neutral hydrogen from the early Universe, providing a window onto the period when the gas between the galaxies was reionized. If reionization was an abrupt process, there should be a characteristic signature visible against the smooth foreground in an all-sky spectrum. Judd Bowman and Alan Rogers used the EDGES broadband spectrometer with a simple dipole antenna at the Murchison Radio-astronomy Observatory site in Western Australia to obtain an all-sky average spectrum between 100 and 200 megahertz. By subtracting a model of interfering Galactic and terrestrial sources, they recovered the 21-cm signal and place constraints on the reionization history, ruling out the most rapid possible transitions.

Date: 2010
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/nature09601 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:468:y:2010:i:7325:d:10.1038_nature09601

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/nature09601

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().