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The Average Intensity and Spectral Evolution of Batse Cosmic Gamma-Ray BurstsStatistical studies of BATSE gamma-ray bursts are presented: we average the time profiles, aligning the events at their highest peaks. Using the time histories in different energy channels, we summarize the general features of the average intensity and spectral evolution of gamma-ray bursts (GRBS) and compare the average evolution of bright and dim events. While no differences are found between the average intensity histories, the average hardness ratio histories demonstrate a hardness/brightness correlation. The observed lack of differences between the intensity histories of bright and dim bursts is incompatible with cosmological time dilation effects predicted by simple cosmological models. The combined results of no intensity history difference but a hardness history difference between bright and dim bursts places constraints on galactic models for the origin of GRBS.
Document ID
19970023714
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mitrofanov, Igor G.
(Academy of Sciences (USSR) Moscow, USSR)
Chernenko, Anton M.
(Academy of Sciences (USSR) Moscow, USSR)
Pozanenko, Alexei S.
(Academy of Sciences (USSR) Moscow, USSR)
Briggs, Michael S.
(Alabama Univ. Huntsville, AL United States)
Paciesas, William S.
(Alabama Univ. Huntsville, AL United States)
Fishman, Gerald J.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Meegan, Charles A.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Sagdeev, Roald Z.
(Maryland Univ. College Park, MD United States)
Date Acquired
August 17, 2013
Publication Date
March 10, 1996
Publication Information
Publication: The Astrophysical Journal
Publisher: American Astronomical Society
Volume: 459
Issue: 2
ISSN: 0004-637X
Subject Category
Space Radiation
Report/Patent Number
NAS 1.15:112505
NASA-TM-112505
Accession Number
97N23991
Funding Number(s)
CONTRACT_GRANT: ISF-MGN000
CONTRACT_GRANT: RFFR-93-02-03014
CONTRACT_GRANT: ISF-MGN300
Distribution Limits
Public
Copyright
Public Use Permitted.
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