Origin of cosmic rays and evolution of spallogenic nuclides Li, Be and B

Details Origin of cosmic rays and evolution of spallogenic nuclides Li, Be and B Origin of cosmic rays and evolution of spallogenic nuclides Li, Be and B

2010-03-11

arxiv.org/abs/1003.2317v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

10 pages, 8 figures, Invited review in IAU Symposium 268 "Light Elements in the Universe", Eds. C. Charbonnel, M. Tosi, F. Pri

Scientific paper

A short overview is presented of current issues concerning the production and evolution of Li, Be and B in the Milky Way. In particular, the observed "primary-like" evolution of Be is re-assessed in the light of a novel idea: it is argued that Galactic Cosmic Rays are accelerated from the wind material of rotating massive stars, hit by the forward shock of the subsequent supernova explosions. The pre-galactic levels of both Li isotopes remain controversial at present, making it difficult to predict their Galactic evolution. A quantitative estimate is provided of the contributions of various candidate sources to the solar abundance of Li.

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