1998/09/23 by Carlos Abia, Ute Lisenfeld, Abia, Carlos +3
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9809283
file nicV.sty nedeed for LATEX compilation. Contribution in the Proceedings of "Nuclei in the Cosmos V" Volos (Grecce)
arxiv created 1998/09/23 · arxiv updated 2009/12/01
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.