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An analysis of the structure of gamma ray burst time historiesIf gamma-ray bursts (GRB) arise from a small number of distinctly different physical phenomena, then this might be revealed by a clustering of time profile characteristics into a small number of groups. A 'spike' counting algorithm was applied to 107 GRB profiles. Graphs of spike frequency and spike amplitude versus burst intensity and duration are presented. So far, no evidence of grouping is seen.
Document ID
19930009394
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Lestrade, John Patrick (Mississippi State Univ. Mississippi State, MS, United States)
Fishman, G. J. (NASA Marshall Space Flight Center Huntsville, AL., United States)
Meegan, C. A. (NASA Marshall Space Flight Center Huntsville, AL., United States)
Wilson, R.B. (NASA Marshall Space Flight Center Huntsville, AL., United States)
Paciesas, W. S. (Alabama Univ. Huntsville., United States)
Pendleton, G. N. (Alabama Univ. Huntsville., United States)
Moore, P. (Boeing Computer Support Services, Inc. Huntsville, AL., United States)
Cody, H. E. (NASA John F. Kennedy Space Center Cocoa Beach, FL., United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1992
Subject Category
Space Radiation
Report/Patent Number
NASA-CR-191997
NAS 1.26:191997
Report Number: NASA-CR-191997
Report Number: NAS 1.26:191997
Accession Number
93N18583
Funding Number(s)
CONTRACT_GRANT: NAG8-212
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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