中文

Strömgren 金属丰度定标:$m_1$ 与 $b-y$ 关系

天体物理学 2007-11-26 v1

摘要

我们基于星团红巨星的 byb-y 色指数,对 Strömgren 金属丰度指数 m1m_1 进行了新的定标。当前的金属丰度 - 指数 - 颜色关系在 0.40<by<1.00.40 < b-y < 1.0 的颜色范围内并非线性,但能以约 0.25 dex 的精度提供星团及场红巨星的铁丰度。

关键词

引用

@article{arxiv.0711.3534,
  title  = {Stroemgren metallicity calibration: the m1, b-y relation},
  author = {A. Calamida and G. Bono and P. B. Stetson and L. M. Freyhammer and S. Cassisi and F. Grundahl and A. Pietrinferni and M. Hilker and F. Primas and T. Richtler and M. Romaniello and R. Buonanno and F. Caputo and M. Castellani and C. E. Corsi and I. Ferraro and G. Iannicola and L. Pulone},
  journal= {arXiv preprint arXiv:0711.3534},
  year   = {2007}
}

备注

3 pages, 2 figures; to appear in Mem. Soc. Astr. Italiana, Vol. 79/2 (proceeding Cefalu' Workshop "XXI Century Challenges for Stellar Evolution", ed. S. Cassisi & M. Salaris)