Lithium-beryllium-boron: origin and evolution
Résumé
The origin and evolution of lithium-beryllium-boron is a crossing point between different astrophysical fields: optical and gamma spectroscopy, nonthermal nucleosynthesis, Big Bang and stellar nucleosynthesis and finally galactic evolution. We describe the production and the evolution of lithium-beryllium-boron from Big Bang up to now through (i) the interaction of the Standard Galactic Cosmic Rays with the interstellar medium, (ii) supernova neutrino spallation, and (iii) a low-energy component related to supernova explosions in galactic superbubbles.