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Soft-spectrum gamma-ray burstsA typical gamma to ray burst (GRB), when observed over the approximately 30 keV to 1 MeV range, has a 1 to 10 s duration and a spectrum describable in terms of a several-hundred-keV exponential function. However, KONUS data indicate that some GRBs may belong to a separate class of short (approximately 0.1 s), soft (kT 50 keV) events. This result has been questioned because the KONUS experiments, with only 4 s spectral time resolution and a lack of information approximately 30 keV, are not particularly well suited for the detection and study of these bursts. The UC Berkely/Los Alamos Solar X-Ray Spectrometer/GRB experiment on the International Cometry Explorer (ICE), with nearly continuous coverage of approxiomately one-sixth of the sky down to 5 keV at 0.5 s resolution, is better designed for such a task. Using ICE data, it was confirmed that soft-spectrum events do indeed exist, apparently with properties that set them apart from the general GRB population. Results from the ICE experiment are presented.
Document ID
19850025591
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Laros, J. G.
(Los Alamos National Lab. NM, United States)
Fenimore, E. E.
(Los Alamos National Lab. NM, United States)
Fikani, M. M.
(Los Alamos National Lab. NM, United States)
Klebesadel, R. W.
(Los Alamos National Lab. NM, United States)
Kane, S. R.
(California Univ. Berkeley, United States)
Date Acquired
August 12, 2013
Publication Date
August 1, 1985
Publication Information
Publication: 19th Intern. Cosmic Ray Conf - Vol. 1
Subject Category
Space Radiation
Report/Patent Number
OG-1.1-2
Report Number: OG-1.1-2
Accession Number
85N33904
Funding Number(s)
CONTRACT_GRANT: NAS5-25980
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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