The Atomic Line List

This is a compilation of approximately 923,000 allowed, intercombination and forbidden atomic transitions with wavelengths in the range from 0.5 Å to 1000 µm. It's primary intention is to allow the identification of observed atomic absorption or emission features. The wavelengths in this list are all calculated from the difference between the energy of the upper and lower level of the transition. No attempt has been made to include observed wavelengths. Most of the atomic energy level data have been taken from the Atomic Spectra Database provided by the National Institute of Standards and Technology (NIST).

本数据集汇集了约923,000条允许的、组合与禁止的原子跃迁，其波长范围介于0.5埃至1000微米之间。其主要目的是便于识别观测到的原子吸收或发射特征。列表中的波长均通过计算跃迁上、下能级间的能量差所得。未尝试包含观测到的波长。大部分原子能级数据源自美国国家标准与技术研究院（NIST）提供的原子光谱数据库。