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Photon-deficient Compton scattering by nonthermal electrons - Comparison with gamma-ray burst spectraThe model of gamma-ray-burst spectra proposed by Zdziarski and Lamb (1986, 1987) is reviewed and compared with observed spectra. In the model, the spectrum arises from multiple Compton scatterings in a nonthermal source with a deficit of soft photons. The steady-state electron distribution in such a source is a nonthermal power law that joins at low energies onto a thermal distribution that may be either optically thick or thin. Both cases lead naturally to a two-component spectrum with a photon-energy index in the X-ray spectrum which is much less than one and a photon-energy index in the gamma-ray spectrum which is larger than the X-ray photon-energy index. Fits to the observed gamma-ray-burst spectra (where data exist for both X-ray and gamma-ray energies) show good agreement with the model.
Document ID
19870051167
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Zdziarski, Andrzej A.
(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; California Institute of Technology Pas, United States)
Lamb, Don Q.
(Chicago, University IL, 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
Accession Number
87A38441
Funding Number(s)
CONTRACT_GRANT: NAGW-830
Distribution Limits
Public
Copyright
Other

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