Origin of a possible diffuse electron-positron annihilation radiation

Details Origin of a possible diffuse electron-positron annihilation radiation Origin of a possible diffuse electron-positron annihilation radiation

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...201..379s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 201, no. 2, Aug. 1988, p. 379-390.

Astronomy and Astrophysics

Astrophysics

24

Diffuse Radiation, Galactic Evolution, Galactic Radiation, Nuclear Astrophysics, Positron Annihilation, Stellar Physics, Background Radiation, Novae, Nuclear Fusion, Supernovae

Scientific paper

The authors discuss the nature and distribution of the various e+ sources. It is shown that the diffuse components of the 26Al and annihilation observations which are considered together can be explained by nucleosynthesis of galactic supernovae and novae. Moreover the contributions to the e+ background from 26Al, 56Co, 22Na and 44Ti decays are discussed as a function of the values of the diffuse flux and of the "Ps-fraction" f, the nature of the SN-distribution, the rate of occurrence of peculiar SNI (helium dwarf detonating SNI) and the local "initial mass function".

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