NASA NTRS · 19880036361
Positron annihilation at the Galactic center
Abstract
The efficiency of production of positrons by gamma-gamma interaction under conditions which may occur in the Galactic center. Their annihilation line and three-photon annihilation continuum contribute to the emitted radiation. If a geometrical model is assumed, it will be possible to determine the parameters of the gamma-ray source region. By comparing the computed spectra to observations, a rough estimate is made using extant data.
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Carrigan, B. J., Katz, J. I.. 1987-12-15. Positron annihilation at the Galactic center. https://ntrs.nasa.gov/citations/19880036361
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