Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.167..317s&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 167, no. 2, May 1990, p. 317-327. Research supported by the National Natur
Astronomy and Astrophysics
Astrophysics
Annihilation Reactions, Emission Spectra, Energy Spectra, Gamma Ray Bursts, Gamma Ray Spectra, Bremsstrahlung, Compton Effect, Synchrotron Radiation, Thermal Radiation
Scientific paper
A modified two-component method of fitting spectra of cosmic gamma-ray bursts is proposed. The analysis supports the existence of structure in the thin emission sheet. It is concluded that the peak appearing at 780 keV in the spectrum of GB 781119(3) does not seem to be a one-photon annihilation line; and the spectra examined fit well in the middle energy range if thermal synchrotron radiation and two-photon annihilation spectrum is used.
Guo Qiushuang
Shi Tianyi
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