The Light Elements Be and B as Stellar Chronometers in the Early Galaxy
Astrophysics
2007-05-23 v1
Abstract
Recent detailed simulations of Galactic Chemical Evolution have shown that the heavy elements, in particular [Fe/H], are expected to exhibit a weak, or absent, correlation with stellar ages in the early Galaxy due to the lack of efficient mixing of interstellar material enriched by individual Type II supernovae. A promising alternative "chronometer" of stellar ages is suggested, based on the expectation that the light elements Be and B are formed primarily as spallation products of Galactic Cosmic Rays.
Keywords
Cite
@article{arxiv.astro-ph/0002056,
title = {The Light Elements Be and B as Stellar Chronometers in the Early Galaxy},
author = {Timothy C. Beers and Takeru K. Suzuki and Yuzuru Yoshii},
journal= {arXiv preprint arXiv:astro-ph/0002056},
year = {2007}
}
Comments
7 pages, 2 figures, To appear in "The Light Elements and Their Evolution," IAU Symposium 198, ASP Conference Series, eds. L. da Silva, M. Spite, & J.R. de Medeiros (ASP, San Francisco)