Garik Israelian, Ramon Garcia Lopez, Rafael Rebolo
Published 2000-03-22Version 1
We discuss the early evolution of beryllium and oxygen in our Galaxy by comparing abundances of these elements for halo and disk metal-poor stars. Both, O and Be rise as we go progressively to more metal-rich stars, showing a slope 0.41 +-0.09 ([Be/O] vs [Fe/H]) for stars with [Fe/H] < -1. This relationship provides an observational constraint to the actually proposed Galactic Cosmic Ray theories.
Comments: 8 pages, 2 figures, To appear in The Light Elements and Their Evolution, IAU Symp. 198, L. da Silva, M. Spite and R. de Medeiros, eds., ASP
Nova nucleosynthesis and Galactic evolution of the CNO isotopes
Galactic Evolution along the Hubble Sequence
The role of gravitational supernovae on the galactic evolution of the LiBeB isotopes
