On the possible existence of cosmological cosmic rays. III - Nuclear gamma-ray production

Details On the possible existence of cosmological cosmic rays. III - Nuclear gamma-ray production On the possible existence of cosmological cosmic rays. III - Nuclear gamma-ray production

Nov 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...218..263m&link_type=abstract

Astrophysical Journal, Part 1, vol. 218, Nov. 15, 1977, p. 263-268.

Astronomy and Astrophysics

Astronomy

1

Cosmic Rays, Cosmology, Galactic Evolution, Gamma Ray Astronomy, Nuclear Reactions, Particle Interactions, Beryllium, Helium, Hydrogen, Interstellar Gas, Isotopes, Light Elements, Lithium, Radioactive Decay

Scientific paper

The flux of nuclear gamma rays formed by low-energy proton-alpha particle and alpha particle-alpha particle reactions during the decay of the excited states of He-4, Li-6, Li-7, and Be-7 is computed; the calculations have relevance for the understanding of an hypothesized origin of cosmological cosmic rays. It is found that even for the Li-7 and Be-7 cases the flux is at least six orders of magnitude lower than the observed X-ray background flux. Estimates of the cross sections for nuclear gamma ray production from several of the reactions are presented.

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