中文摘要：

用全实加关联方法计算了类锂Fe^23＋离子1s^23d-1s^2nf（4≤n≤9）的跃迁能和1s^2nf（n≤9）态的精细结构.在类氢近似下,估算了对能量的高阶相对论修正.依据量子亏损理论,确定了Rydberg系列1s^2nf的量子数亏损,据此可以实现对任意高激发态（n≥10）的能量的可靠预言.计算了Fe^23＋离子1s^23d-1s^2nf（4≤n≤9）的偶极跃迁在三种规范下的振子强度.与量子亏损理论相结合,得到该离子从1s^23d态到电离阈附近高激发1s^2nf态间的跃迁振子强度以及到相应连续态跃迁的振子强度密度.

英文摘要：

The transition energy of 1s^23d-1s^2nf（4≤n≤9） and fine structure splitting of 1s^2nf（n≤9） states for lithium-like Fe^23＋ ion are calculated by using the full-core plus correlation method.The higher-order relativistic contribution to the energy is estimated under a hydrogenic approximation.The quantum defect of Rydberg series 1s^2nf is determined according to the quantum defect theory.The energies of any highly excited states with n≥10 for this series can be reliably predicted using the quantum defects which are function of energy.The dipole oscillator strengths for the 1s^23d-1s^2nf（n≤9） transitions of Fe^23＋ ion are calculated with the energies and FCPC wave functions obtained above.Combining the quantum defect theory with the discrete oscillator strengths,the discrete oscillator strengths for the transitions from 1s^23d state to highly excited states（n≥10） and the oscillator strengths density corresponding to the bound-free transitions are obtained.