早期星系中氦与硼作为恒星年龄测时仪器
天体物理学
2007-05-23 v1
摘要
最近的详细模拟表明，重元素（特别是 [Fe/H]）在早期星系中预期将呈现出较弱或不存在的与恒星年龄相关性，这是由于缺乏对由单个II型超新星丰富的星际介质有效混合的结果。一个有前景的替代方案“测时仪器”被建议，基于氦和硼主要作为星系宇宙射线的碰撞产物而形成的这一预期。
引用
@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}
}
备注
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)