Gamma-Ray Line Emission from 7-Li and 7-Be Production by Cosmic-Rays

Abstract

We calculate the total gamma-ray line emission at ~450 keV that accompanies 7-Li and 7-Be production by cosmic-ray interactions, including the delayed line emission at 0.478 MeV from 7-Be radioactive decay. We present a new gamma-ray spectroscopic test which has the potential to give direct information on the nature of the interstellar regions into which 7-Be ions propagate and decay. Finally, we evaluate the intensity of the predicted diffuse emission from the central radian of the Galaxy.

4 pages with 5 figures. Contributed paper at the 4th INTEGRAL Workshop, 4-8 September 2000, Alicante (Spain). To be published in the ESA-SP series. Uses esapub.cls