High-energy emission in gamma-ray bursts

Between February 1980 and August 1983 the Gamma-Ray Spectrometer on the Solar Maximum Mission Satellite (SMM) detected 72 events identified as being of cosmic origin. These events are an essentially unbiased subset of all gamma-ray bursts. The measured spectra of these events show that high energy (...

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Bibliographic Details
Published inThe Astrophysical journal Vol. 288; no. 2; pp. L37 - L40
Main Authors Matz, S. M., Forrest, D. J., Vestrand, W. T., Chupp, E. L., Share, G. H., Rieger, E.
Format Journal Article
LanguageEnglish
Published Legacy CDMS University of Chicago Press 15.01.1985
Subjects
Astronomy
Earth, ocean, space
Exact sciences and technology
Gamma-ray sources ; gamma-ray bursts
Space Radiation
Stellar systems. Galactic and extragalactic objects and systems. The universe
Unidentified sources and radiation outside the solar system
Rγ burst
Satellite observation
Magnetic field
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Summary:Between February 1980 and August 1983 the Gamma-Ray Spectrometer on the Solar Maximum Mission Satellite (SMM) detected 72 events identified as being of cosmic origin. These events are an essentially unbiased subset of all gamma-ray bursts. The measured spectra of these events show that high energy (greater than 1 MeV) emission is a common and energetically important feature. There is no evidence for a general high-energy cut-off or a distribution of cut-offs below about 6 MeV. These observations imply a limit on the preferential beaming of high energy emission. This constraint, combined with the assumption of isotropic low energy emission, implies that the typical magnetic field strength at burst radiation sites is less than 1 x 10 to the 12th gauss.
Bibliography:CDMS
Legacy CDMS
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0004-637X
1538-4357
DOI:10.1086/184417