The Explanation of the Positron-Electron Annihilation Line at Our Galactic Center under the Model of Galactic Nuclei with Monopoles
The observational data on the intense positron-electron annihilation line (AL) at our Galactic Center, detected by ballons (1) and satellites (2), may be summarised as follows: the energy of spectral line is 5109.9±0.25 keV with very small gravitational redshift (Z ⩽ 7 × 10-4); the intensity of spectral line is ∼ 6 × 1037 erg/sec, corresponding to annihilation of ∼ 1043 e+/sec; the width of spectral line is very small, FWMH ⩽ 3.2 keV (3); and the intensity of spectral line decreases about 1/3 during 6 Months (2). The higher energy photons (continuum) of Eγ ⩾ 511 keV are also detected; the integral intensity from Eγ = 500 keV – 10 MeV is (8 – 20) × 1037 erg/sec(4), corresponding to about 1/5 the photon number of AL.
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