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A gamma-ray burst at a redshift of z approximate to 8.2

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Tanvir, N. R., Fox, D. B., Levan, A. J., Berger, E., Wiersema, K., Fynbo, J. P. U., Cucchiara, A., Kruehler, T., Gehrels, N., Bloom, Joshua S. et al.
(2009) A gamma-ray burst at a redshift of z approximate to 8.2. Nature, Vol.461 (No.7268). pp. 1254-1257. doi:10.1038/nature08459

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Official URL: http://dx.doi.org/10.1038/nature08459

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Abstract

Long-duration gamma-ray bursts (GRBs) are thought to result from the explosions of certain massive stars(1), and some are bright enough that they should be observable out to redshifts of z > 20 using current technology(2-4). Hitherto, the highest redshift measured for any object was z = 6.96, for a Lyman-alpha emitting galaxy(5). Here we report that GRB 090423 lies at a redshift of z approximate to 8.2, implying that massive stars were being produced and dying as GRBs similar to 630 Myr after the Big Bang. The burst also pinpoints the location of its host galaxy.

Item Type: Journal Article
Subjects: Q Science
Divisions: Faculty of Science > Physics
Journal or Publication Title: Nature
Publisher: Nature Publishing Group
ISSN: 0028-0836
Official Date: 29 October 2009
Dates:
DateEvent
29 October 2009Published
Volume: Vol.461
Number: No.7268
Number of Pages: 4
Page Range: pp. 1254-1257
DOI: 10.1038/nature08459
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Clay Fellowship

Data sourced from Thomson Reuters' Web of Knowledge

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