A new γ-ray burst classification scheme from GRB 060614

N. Gehrels (), J. P. Norris, S. D. Barthelmy, J. Granot, Y. Kaneko, C. Kouveliotou, C. B. Markwardt, P. Mészáros, E. Nakar, J. A. Nousek, P. T. O'Brien, M. Page, D. M. Palmer, A. M. Parsons, P. W. A. Roming, T. Sakamoto, C. L. Sarazin, P. Schady, M. Stamatikos and S. E. Woosley
Additional contact information
N. Gehrels: NASA/Goddard Space Flight Center
J. P. Norris: NASA/Goddard Space Flight Center
S. D. Barthelmy: NASA/Goddard Space Flight Center
J. Granot: KIPAC, Stanford University
Y. Kaneko: USRA, NSSTC
C. Kouveliotou: NASA/Marshall Space Flight Center, NSSTC, VP-62
C. B. Markwardt: NASA/Goddard Space Flight Center
P. Mészáros: Department of Astronomy and Astrophysics
E. Nakar: Theoretical Astrophysics, California Institute of Technology, MS 130-33
J. A. Nousek: Department of Astronomy and Astrophysics
P. T. O'Brien: University of Leicester
M. Page: University College London
D. M. Palmer: Los Alamos National Laboratory
A. M. Parsons: NASA/Goddard Space Flight Center
P. W. A. Roming: Department of Astronomy and Astrophysics
T. Sakamoto: NASA/Goddard Space Flight Center
C. L. Sarazin: University of Virginia
P. Schady: Department of Astronomy and Astrophysics
M. Stamatikos: NASA/Goddard Space Flight Center
S. E. Woosley: University of California at Santa Cruz

Nature, 2006, vol. 444, issue 7122, 1044-1046

Abstract: The long and the short of it The tidy classification system that divided γ-ray bursts (GRBs) into long-duration busts (lasting more than two seconds) and short may have had its day. The final nail in its coffin may be GRB 060614. Discovered on 14 June 2006 by the Burst Alert Telescope on-board the Swift satellite, this burst was long, at 102 seconds, but as reported in a clutch of papers in this issue, it has a number of properties, including the absence of an accompanying supernova, that were previously considered diagnostic of a 'short' GRB. The hunt is now on for a classification system to take account of the diversity now apparent in GRBs. In the accompanying News & Views, Bing Zhang suggests that the answer may be to adopt a Type I/Type II classification similar to that used for supernovae.

Date: 2006
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DOI: 10.1038/nature05376

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