[Ti II] lines observed in η Carinae Sr-filament and lifetimes of the metastable states of Ti+
[Ti II] lines observed in η Carinae Sr-filament and lifetimes of the metastable states of Ti+
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在 η Carinae Sr 丝中观察到的 [Ti II] 线和 Ti+ 亚稳态的寿命
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
A. Msezane
中科院分区：
文献类型：
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作者：
N. C. Deb;A. Hibbert;Z. Felfli;A. Msezane
禁戒（E2和M1）之间的最低37精细结构偶宇称能级属于3d 24 s，3d 3和3d 4s 2配置的Ti II的跃迁进行了评估的配置相互作用（CI）的计算，其中相对论效应占通过完整的Breit-Pauli相互作用的哈密顿矩阵。据我们所知，这是所有37个偶宇称能级中E2和M1跃迁概率的第一次完整计算。本gA值与Palmeri等人（2008 J. Phys. B：At.摩尔Opt. Phys. 41 125703）在船底座η Sr-细丝中观察到的29条[Ti II]线显示出5% → 50%之间的不同一致性。几个亚稳态的计算和观察到的寿命之间的协议大多是好的。结果表明，n = 3和4的配合物之间的单和双核价相关性是收敛性好的前提。
Forbidden (E2 and M1) transitions among the lowest 37 fine-structure even parity levels of Ti II belonging to 3d24s, 3d3 and 3d4s2 configurations are evaluated in a configuration interaction (CI) calculation in which relativistic effects are accounted for through the full Breit–Pauli interaction in the Hamiltonian matrix. To our knowledge this is the first complete calculation of E2 and M1 transition probabilities among all 37 even parity levels. Comparison of the present gA values with the only other calculated values by Palmeri et al (2008 J. Phys. B: At. Mol. Opt. Phys. 41 125703) for the 29 [Ti II] lines observed in the η Carinae Sr-filament show varying agreement of between 5% → 50%. Agreements among the calculated and observed lifetimes of a few metastable states are mostly good. It is found that single and double core–valence correlation between the n = 3 and 4 complexes are needed for well-converged results.