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

Published online by Cambridge University Press:  23 April 2010

Nikos Prantzos
Nikos Prantzos*
Affiliation:
Institut d'Astrophysique de Paris, 98bis, Bd. Arago, 75014Paris email: prantzos@iap.fr
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Abstract

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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.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S268: Light Elements in the Universe , November 2009 , pp. 473 - 482
Copyright
Copyright © International Astronomical Union 2010

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