Other
Scientific paper
May 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..410.1152s&link_type=abstract
The fourth compton symposium. AIP Conference Proceedings, Volume 410, pp. 1152-1156 (1997).
Other
Supernova Remnants, Gamma-Ray Sources, Gamma-Ray Bursts, Cosmic Rays
Scientific paper
We model the temporally evolving nonthermal particle and photon spectra at different stages in the lifetime of a standard shell-type supernova remnant. A characteristic νFν spectrum of a SNR consists of a peak at radio-through-optical energies from nonthermal electron synchrotron emission and another high-energy gamma-ray peak due primarily to nonthermal electron bremsstrahlung, Compton scattering, and secondary pion production. We find that SNRs are capable of producing maximum gamma-ray luminosities >~1034 erg s-1 if the density of the local ISM is >~1 cm-3. This emission will persist for >~105 years after the supernova explosion. This long gamma-ray lifetime suggests that SNRs with a wide range of ages could be gamma-ray sources and could constitute some of the unidentified EGRET sources.
Dermer Charles D.
Mattox John R.
Skibo Jeffrey G.
Sturner Steven J.
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