Production of the LiBeB isotopes with time-dependent GCR fluxes

Details Production of the LiBeB isotopes with time-dependent GCR fluxes Production of the LiBeB isotopes with time-dependent GCR fluxes

1998-09-23

arxiv.org/abs/astro-ph/9809283v1

Astronomy and Astrophysics

Astrophysics

file nicV.sty nedeed for LATEX compilation. Contribution in the Proceedings of "Nuclei in the Cosmos V" Volos (Grecce)

Scientific paper

It is well known that no time-independent galactic cosmic ray (GCR) flux model can account for the observed linear relationship of Be and B abundances with metallicity. In this contribution we solve the time-dependent CR propagation equation using simple analytic time dependences for the CR spectrum at the source, the galactic CR escape-length and gas density evolution. The CR fluxes so obtained are used to study the early evolution of the LiBeB abundances in the Galaxy.

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