Computer Science
Scientific paper
Apr 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aipc..155..184b&link_type=abstract
AIP Conference Proceedings, Volume 155, pp. 184-187 (1987).
Computer Science
Gamma-Ray Sources, Gamma-Ray Bursts, Elementary Particle Processes
Scientific paper
Two separate observations of the γ-ray spectrum originating from the Galactic Center were made by HEAO-3 in the fall of 1979 and in the spring of 1980. The 2γ 511 KeV annihilation line flux decreased by a factor of three over the corresponding six month period, whereas the excess γ-ray continuum below the 511 KeV line, often interpreted as 3γ decay of orthopositronium, barely changed. This apparent discrepancy in the temporal behavior makes it difficult to associate the bulk of the excess continuum with the 3γ decay of positronium. We will show that Compton scattering of the line and high energy radiation provides a natural explanation for the surprisingly small change seen in the excess continuum.
Bildsten Lars M.
Zurek Wojciech Hubert
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