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SMM observation of a cosmic gamma-ray burst from 20 keV to 100 MeVThe Solar Maximum Mission gamma-ray spectrometer has detected an intense gamma-ray burst that occurred on August 5, 1984. The burst originated from a source in the constellation Hydra and lasted about 45 s. Its integral fluence at 20 keV was 0.003 erg/sq cm. Spectral evolution similar to other bursts detected by SMM was observed. The overall shape of the spectrum from 20 keV to 100 MeV, on timescales as short as 2 s, is relatively constant. This shape can be fitted by the sum of an exponential-type function and a power law. There is no evidence for narrow or broadened emission lines.
Document ID
19870051154
Document Type
Reprint (Version printed in journal)
Authors
Share, G. H. (Hulburt (E. O.) Center for Space Research Washington, DC, United States)
Matz, S. M. (U.S. Navy, E.O. Hulburt Center for Space Research, Washington DC, United States)
Messina, D. C. (Sachs/Freeman Associates Bowie, MD, United States)
Nolan, P. L. (Stanford University CA, United States)
Chupp, E. L. (New Hampshire, University Durham, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Advances in Space Research
Volume: 6
Issue: 4 19
ISSN: 0273-1177
Subject Category
SPACE RADIATION
Funding Number(s)
CONTRACT_GRANT: NASA ORDER S-14513-D
CONTRACT_GRANT: BMFT-01-OK-017-ZA/WS/WRK-0275
CONTRACT_GRANT: NAS5-28609
Distribution Limits
Public
Copyright
Other