The Measurement of Atomic Transition Probabilities of Metal Atoms and Ions of Astrophysical Interest

原子和离子跃迁数据是许多天体物理学研究的基础。例如，这些数据对于计算恒星大气模型和推导恒星元素丰度至关重要。这些数据需要通过实验获得，这是首席研究员建议做的。将有两个重点：应用现有技术来测量原子和离子跃迁的寿命和分支比，并扩展当前技术来测量更短波长和更高的激发和电离状态。

Atomic and ionic transition data are fundamental to much of astrophysical research. For example, this data is crucial for computing stellar atmosphere models and for deriving stellar elemental abundances. This data needs to be obtained experimen- tally, which the Principal Investigator proposes to do. There will be two emphases: apply existing techniques to measuring lifetimes and branching ratios of atomic and ionic transitions and extend current techniques to measuring at shorter wavelengths and on higher excitation and ionization states.