恒星和星际介质Sn IV电磁跃迁的精确估算
Accurate estimations of electromagnetic transitions of Sn IV for stellar and interstellar media
摘要：
在这里，我们报告准确的从头计算研究天体物理学重要的电磁跃迁参数之间的不同的低的状态锡IV。我们的从头计算是基于复杂的相对论耦合集团理论，几乎用尽了许多重要的电子关联。为了建立计算的准确性，我们将我们的结果与现有的实验进行比较，并估计长度和速度计量形式的过渡振幅。这些允许和禁止的跃迁波长大多位于红外区域，它们可以在不同的冷恒星和星际介质中观察到。为了提高不确定度，我们使用实验能量来估计上述跃迁参数。所提供的数据将有助于发现不同天体物理和实验室等离子体中离子的丰度。
英文摘要：
Here we report on accurate ab initio calculations to study astrophysically important electromagnetic transition parameters among different low-lying states of Sn IV. Our ab initio calculations are based on the sophisticated relativistic coupled-cluster theory, which almost exhausts many important electron correlations. To establish the accuracy of the calculations, we compare our results with the available experiments and estimates the transition amplitudes in length and velocity gauged forms. Most of these allowed and forbidden transition wavelengths lie in the infrared region, and they can be observed in the different cool stellar and interstellar media. For the improvement of uncertainty, we use experimental energies to the estimations of the above transition parameters. The presented data will be helpful to find the abundances of the ion in different astrophysical and laboratory plasma.
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