Galactic Evolution of Beryllium and Oxygen
Loading...
Date
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
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.
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
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