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The Light Elements Be and B as Stellar Chronometers in the Early Galaxy

Timothy C. Beers·Takeru K. Suzuki·Yuzuru Yoshii
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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.

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Timothy C. Beers, Takeru K. Suzuki, Yuzuru Yoshii. 2000-02-02. The Light Elements Be and B as Stellar Chronometers in the Early Galaxy. https://arxiv.org/abs/astro-ph/0002056

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