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Galactic Evolution of Beryllium and Oxygen

Published online by Cambridge University Press:  25 May 2016

Garik Israelian ,
Ramón J. García López  and
Rafael Rebolo
Garik Israelian
Affiliation:
1.- Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain 2.- Departamento de Astrofísica, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez s/n, E-38071 La Laguna, Tenerife, Spain
Ramón J. García López
Affiliation:
1.- Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain 2.- Departamento de Astrofísica, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez s/n, E-38071 La Laguna, Tenerife, Spain
Rafael Rebolo
Affiliation:
1.- Instituto de Astrofísica de Canarias, E-38200 La Laguna, Tenerife, Spain 3.- Consejo Superior de Investigaciones Científicas, Spain

Abstract

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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.

Type
5. Abundance of Beryllium and Boron
Information
Symposium - International Astronomical Union , Volume 198: The Light Elements and their Evolution , 2000 , pp. 397 - 404
Copyright
Copyright © Astronomical Society of the Pacific 2000 

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