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

Tanvir, NR, Fox, DB, Levan, AJ, Berger, E, Wiersema, K, Fynbo, JPU, Cucchiara, A, Kruehler, T, Gehrels, N, Bloom, JS, Greiner, J, Evans, PA, Rol, E, Olivares, F, Hjorth, J, Jakobsson, P, Farihi, J, Willingale, R, Starling, RLC, Cenko, SB , Perley, DA, Maund, JR, Duke, J, Wijers, RAMJ, Adamson, AJ, Allan, A, Bremer, MN, Burrows, DN, Castro-Tirado, AJ, Cavanagh, B, de Ugarte Postigo, A, Dopita, MA, Fatkhullin, TA, Fruchter, AS, Foley, RJ, Gorosabel, J, Kennea, J, Kerr, T, Klose, S, Krimm, HA, Komarova, VN, Kulkarni, SR, Moskvitin, AS, Mundell, CG, Naylor, T, Page, K, Penprase, BE, Perri, M, Podsiadlowski, P, Roth, K, Rutledge, RE, Sakamoto, T, Schady, P, Schmidt, BP, Soderberg, AM, Sollerman, J, Stephens, AW, Stratta, G, Ukwatta, TN, Watson, D, Westra, E, Wold, T and Wolf, C (2009) A gamma-ray burst at a redshift of z approximate to 8.2. Nature, 461 (7268). pp. 1254-1257. ISSN 0028-0836

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Open Access URL: https://arxiv.org/pdf/0906.1577 (Accepted version)


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: Article
Uncontrolled Keywords: MD Multidisciplinary
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Astrophysics Research Institute
Publisher: Nature Publishing Group
Related URLs:
Date Deposited: 24 May 2017 11:10
Last Modified: 03 Sep 2021 23:31
DOI or ID number: 10.1038/nature08459
URI: https://researchonline.ljmu.ac.uk/id/eprint/6570
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