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A big γ-ray burst at a redshift of z ≈ 8.2

Other TitlesA glimpse of the end of the dark ages: the γ-ray burst of 23 April 2009 at redshift 8.3
AuthorsTanvir, Nial R.; Fox, D. B.; Levan, A. J.; Berger, E.; Wiersema, K.; Fynbo, J. P. U.; Cucchiara, A.; Krühler, T.; Gehrels, N.; Bloom, J. S.; Greiner, J.; Evans, P. A.; Rol, Evert; Olivares, F.; Hjorth, J.; Jakobsson, P.; Farihi, J.; Willingale, R.; Starling, Rhaana L. C.; Cenko, S. B.; Perley, Daniel; Maund, Justyn R.; Duke, J.; Wijers, Ralph A. M. J.; Adamson, A. J.; Allan, A.; Bremer, M.; Burrows, D. N.; Castro-Tirado, Alberto J. ; Cavanagh, B.; Ugarte Postigo, Antonio de ; Dopita, M. A.; Fatkhullin, T. A.; Fruchter, A. S.; Foley, R. J.; Gorosabel, Javier ; Kennea, J. A.; Kerr, T.; Klose, Sylvio; Krimm, H. A.; Komarova, V. N.; Kulkarni, S. R.; Moskvitin, Alexander S.; Mundell, Carole G.; Naylor, Tim; Page, Kim L.; Penprase, Bryan E.; Perri, Matteo; Podsiadlowski, Philipp; Roth, Katherine; Rutledge, Robert E.; Sakamoto, Takanori; Schady, Patricia; Schmidt, Brian; Soderberg, Alicia M.; Sollerman, Jesper; Stephens, Andrew William; Stratta, Guilia; Ukwatta, Tilán N.; Watson, David G.; Westra, Eduard; Wold, T.; Wolf, Christopher
Issue Date29-Oct-2009
PublisherNature Publishing Group
CitationNature 461(7268): 1254-1257 (2009)
AbstractLong-duration γ-ray bursts (GRBs) are thought to result from the explosions of certain massive stars, and some are bright enough that they should be observable out to redshifts of z > 20 using current technology. Hitherto, the highest redshift measured for any object was z = 6.96, for a Lyman-alpha emitting galaxy. Here we report that GRB 090423 lies at a redshift of z ≈ 8.2, implying that massive stars were being produced and dying as GRBs ~630 Myr after the Big Bang. The burst also pinpoints the location of its host galaxy.
Description4 pages, 3 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/0906.1577
Supporting information available at: http://www.nature.com/nature/journal/v461/n7268/suppinfo/nature08459.html
Publisher version (URL)http://dx.doi.org/10.1038/nature08459
Appears in Collections:(IAA) Artículos
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