1995/12/08 by Reuven Ramaty, Ramaty, Reuven
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9512049
4 pages, uuencoded, compressed postscript, to appear in the Proceedings of the Cosmic Abundance Conference, ASP Conference Series, 1996
arxiv created 1995/12/08 · arxiv updated 2009/12/01
Gamma ray emission lines resulting from accelerated particle bombardment of ambient gas can serve as an important spectroscopic tool for abundance determinations. The method is illustrated by considering the gamma ray line emission observed from solar flares. The observation of similar gamma ray lines from Orion suggests the existence of large fluxes of low energy Galactic cosmic rays. The role of these cosmic rays in the nucleosynthesis of the light isotopes is discussed.