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

Tanvir, NR and Fox, DB and Levan, AJ and Berger, E and Wiersema, K and Fynbo, JPU and Cucchiara, A and Kruehler, T and Gehrels, N and Bloom, JS and Greiner, J and Evans, PA and Rol, E and Olivares, F and Hjorth, J and Jakobsson, P and Farihi, J and Willingale, R and Starling, RLC and Cenko, SB and Perley, DA and Maund, JR and Duke, J and Wijers, RAMJ and Adamson, AJ and Allan, A and Bremer, MN and Burrows, DN and Castro-Tirado, AJ and Cavanagh, B and de Ugarte Postigo, A and Dopita, MA and Fatkhullin, TA and Fruchter, AS and Foley, RJ and Gorosabel, J and Kennea, J and Kerr, T and Klose, S and Krimm, HA and Komarova, VN and Kulkarni, SR and Moskvitin, AS and Mundell, CG and Naylor, T and Page, K and Penprase, BE and Perri, M and Podsiadlowski, P and Roth, K and Rutledge, RE and Sakamoto, T and Schady, P and Schmidt, BP and Soderberg, AM and Sollerman, J and Stephens, AW and Stratta, G and Ukwatta, TN and Watson, D and Westra, E and 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: 24 May 2017 11:10
DOI or Identification number: 10.1038/nature08459
URI: http://researchonline.ljmu.ac.uk/id/eprint/6570

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