IRON Project XLII. Fe XXI

Effective collision strengths for transitions between 52 fine structure states calculated in a Breit-Pauli approximation are provided in ups.dat. Results are provided for logT...本数据集在ups.dat文件中提供了采用布雷特-保利近似（Breit-Pauli approximation）计算得到的52个精细结构能级（fine structure states）间跃迁的有效碰撞强度，相关结果已针对logT……给出。