Origin of the annihilation radiation from the galactic center region

Details Origin of the annihilation radiation from the galactic center region Origin of the annihilation radiation from the galactic center region

Aug 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989nuphs..10...67l&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 10, Issue 2, p. 67-73.

Physics

Nuclear Physics

4

Scientific paper

Observations show that there are two sources of positron annihilation radiation from the region of the Galactic Center: a variable, compact source at or near the Galactic Center and a steady, diffuse source in the galactic disk. We suggest that the annihilating positrons responsible for the variable, annihilation line radiation, observed from 1977 through 1979, result from photon-photon pair production, most likely around an accreting black hole, and that the annihilating, interstellar positrons, responsible for the steady, diffuse galactic annihilation radiation, result from the decay of radionuclei produced by thermonuclear burning in supernovae.

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