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arXiv 1702.03570astro-ph.EP
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ExoMol分子线列表XIX:H $_2$ $^{18}$ O和H $_2$ $^{17}$ O的高精度计算热线列表

ExoMol molecular line lists XIX: high accuracy computed hot line lists for H$_2$$^{18}$O and H$_2$$^{17}$O

Oleg L. Polyansky, Aleksandra A. Kyuberis, Lorenzo Lodi, Jonathan Tennyson, Sergei N. Yurchenko, Roman I. Ovsyannikov, Nikolai F. Zobov

摘要:

提供了水的两种同位素\octo \和\heto的热线列表。计算采用新构建的势能面(PES),它利用了一种新的方法,使用大量的实验能量水平的\hato \给高质量的预测\octo \和\heto。这个过程大大扩展了能量范围,PES可以准确地确定,允许准确预测更高的能量水平比目前已知的直接实验室测量。该PES与高精度的水的{ \it ab initio}偶极矩表面相结合,计算了旋转激发高达$J=50$和能量高达30~000 \cm的态的所有能级、跃迁频率和相关的爱因斯坦A系数。得到的HotWat 78行列表补充了常用的BT 2 \hato列表(Barber et.al,2006,MNRAS,{ \bf 368},1087)。完整的行列表以电子形式提供,作为本文的补充数据,也可在\url{www.exomol.com}上获得。

英文摘要:

Hot line lists for two isotopologues of water, \octo\ and \heto, are presented. The calculations employ newly constructed potential energy surfaces (PES) which take advantage of a novel method for using the large set of experimental energy levels for \hato\ to give high quality predictions for \octo\ and \heto. This procedure greatly extends the energy range for which a PES can be accurately determined, allowing accurate prediction of higher-lying energy levels than are currently known from direct laboratory measurements. This PES is combined with a high-accuracy, {\it ab initio} dipole moment surface of water in the computation of all energy levels, transition frequencies and associated Einstein A coefficients for states with rotational excitation up to $J=50$ and energies up to 30~000 \cm. The resulting HotWat78 line lists complement the well-used BT2 \hato\ line list (Barber et.al, 2006, MNRAS, {\bf 368}, 1087). Full line lists are made available in the electronic form as supplementary data to this article and at \url{www.exomol.com}.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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