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

Tanvir, N. R. and Fox, D. B. and Levan, A. J. and Berger, E. and Wiersema, K. and Fynbo, J. P. U. and Cucchiara, A. and Krühler, T. and Gehrels, N. and Bloom, J. S. and Greiner, J. and Evans, P. A. and Rol, E. and Olivares, F. and Hjorth, J. and Jakobsson, P. and Farihi, J. and Willingale, R. and Starling, R. L. C. and Cenko, S. B. and Perley, D. and Maund, J. R. and Duke, J. and Wijers, R. A. M. J. and Adamson, A. J. and Allan, A. and Bremer, M. N. and Burrows, D. N. and Castro-Tirado, A. J. and Cavanagh, B. and de Ugarte Postigo, A. and Dopita, M. A. and Fatkhullin, T. A. and Fruchter, A. S. and Foley, R. J. and Gorosabel, J. and Kennea, J. and Kerr, T. and Klose, S. and Krimm, H. A. and Komarova, V. N. and Kulkarni, S. R. and Moskvitin, A. S. and Mundell, C. G. and Naylor, T. and Page, K. and Penprase, B. E. and Perri, M. and Podsiadlowski, P. and Roth, K. and Rutledge, R. E. and Sakamoto, T. and Schady, P. and Schmidt, B. P. and Soderberg, A. M. and Sollerman, J. and Stephens, A. W. and Stratta, G. and Ukwatta, T. N. and Watson, D. and Westra, E. and Wold, T. and Wolf, C. (2009) A γ-ray burst at a redshift of z ≈ 8.2. Nature, 461 (7268). pp. 1254-1257. ISSN 0028-0836.

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Long-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-α 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.

Item Type:Article
Related URLs:
URLURL TypeDescription ReadCube access
Fox, D. B.0000-0002-3714-672X
Berger, E.0000-0002-9392-9681
Fynbo, J. P. U.0000-0002-8149-8298
Bloom, J. S.0000-0002-7777-216X
Evans, P. A.0000-0002-8465-3353
Hjorth, J.0000-0002-4571-2306
Cenko, S. B.0000-0003-1673-970X
Perley, D.0000-0001-8472-1996
Maund, J. R.0000-0003-0733-7215
Kennea, J.0000-0002-6745-4790
Krimm, H. A.0000-0003-4348-6058
Kulkarni, S. R.0000-0001-5390-8563
Naylor, T.0000-0002-0506-8501
Page, K.0000-0001-5624-2613
Schmidt, B. P.0000-0001-6589-1287
Sollerman, J.0000-0003-1546-6615
Wolf, C.0000-0002-4569-016X
Additional Information:© 2009 Nature Publishing Group, a division of Macmillan Publishers Limited. Received 3 June 2009; Accepted 19 August 2009. We thank Ph. Yock, B. Allen, P. Kubanek, M. Jelinek and S. Guziy for their assistance with the BOOTES-3 YA telescope observations (Supplementary Information). This work was partly based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the US National Science Foundation on behalf of the Gemini partnership: the National Science Foundation (United States), the Science and Technology Facilities Council (United Kingdom), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), the Ministério da Ciência e Tecnologia (Brazil) and SECYT (Argentina). This work was also partly based on observations made using ESO telescopes at the La Silla or Paranal observatories by G. Carraro, L. Schmidtobreick, G. Marconi, J. Smoker, V. Ivanov, E. Mason and M. Huertas-Company. The UKIRT is operated by the Joint Astronomy Centre on behalf of the UK Science and Technology Facilities Council. R.J.F. acknowledges a Clay Fellowship. Author Contributions: Triggering observations: N.R.T., D.B.F., A.J.L., E.B., J.S.B., D.P., J. Greiner, A.J.C.-T., A.d.U.P.; analysis of ground-based data: N.R.T., D.B.F., A.J.L., E.B., K.W., J.P.U.F., A.C., J.S.B., J.F., J.D., J. Gorosabel, B.C., D.P., J.R.M., T. Kru¨hler, A.J.C.-T., A.d.U.P., C.G.M.; Swift analysis: P.A.E., R.L.C.S., K.P., R.W., A.J.L., N.R.T., N.G., D.W., P.S., T.S.; observations at various observatories and their automation to accept GRB overrides: A.J.A., A.A., T. Kerr, T.N., A.W.S., K.R., T.W. All authors made contributions through their involvement in the programmes from which the data derive, and contributed to the interpretation, content and discussion presented here. Writing was led by N.R.T., A.J.L., D.B.F. and E.B.
Funding AgencyGrant Number
Science and Technology Facilities Council (STFC)UNSPECIFIED
National Research Council of CanadaUNSPECIFIED
Comisión Nacional de Investigación Científica y Tecnológica (CONICYT)UNSPECIFIED
Australian Research CouncilUNSPECIFIED
Ministério da Ciência e TecnologiaUNSPECIFIED
Secretaria de Ciencia y Tecnología (SECYT)UNSPECIFIED
Clay FoundationUNSPECIFIED
Issue or Number:7268
Record Number:CaltechAUTHORS:20091111-100449481
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Official Citation:A γ-ray burst at a redshift of z 8.2 N. R. Tanvir, D. B. Fox, A. J. Levan, E. Berger, K. Wiersema, J. P. U. Fynbo, A. Cucchiara, T. Krühler, N. Gehrels, J. S. Bloom, J. Greiner, P. A. Evans, E. Rol, F. Olivares, J. Hjorth, P. Jakobsson, J. Farihi, R. Willingale, R. L. C. Starling, S. B. Cenko, D. Perley, J. R. Maund, J. Duke, R. A. M. J. Wijers, A. J. Adamson, A. Allan, M. N. Bremer, D. N. Burrows, A. J. Castro-Tirado, B. Cavanagh, A. de Ugarte Postigo, M. A. Dopita, T. A. Fatkhullin, A. S. Fruchter, R. J. Foley, J. Gorosabel, J. Kennea, T. Kerr, S. Klose, H. A. Krimm, V. N. Komarova, S. R. Kulkarni, A. S. Moskvitin, C. G. Mundell, T. Naylor, K. Page, B. E. Penprase, M. Perri, P. Podsiadlowski, K. Roth, R. E. Rutledge, T. Sakamoto, P. Schady, B. P. Schmidt, A. M. Soderberg, J. Sollerman, A. W. Stephens, G. Stratta, T. N. Ukwatta, D. Watson, E. Westra, T. Wold & C. Wolf Nature 461, 1254-1257(29 October 2009) doi:10.1038/nature08459
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:16663
Deposited By: Jason Perez
Deposited On:13 Nov 2009 19:42
Last Modified:09 Mar 2020 13:19

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