State-resolved Photodissociation and Radiative Association Data for the Molecular Hydrogen Ion

State-resolved Photodissociation and Radiative Association Data for the Molecular Hydrogen Ion
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氢离子分子的状态分辨光解离和辐射缔合数据

DOI：
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发表时间：
2017
期刊：
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通讯作者：
E. Timmermans
E. Timmermans
中科院分区：
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文献类型：
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作者：
M. Zammit;J. Savage;J. Colgan;D. Fursa;D. Kilcrease;I. Bray;C. Fontes;P. Hakel;E. Timmermans

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我们给出了H-H+的光解离(PD)和辐射缔合(RA)的态分辨(电子、振动和转动)截面和速率系数。在非相对论Born-Oppenheimer近似下，我们发展了一种全量子力学方法来描述和计算基电子态1与2，，，4，，和电子态(即最多n=4)之间的跃迁数据。计算状态分辨截面和速率系数所需的偶极矩阵元和能量的表将公开可用。这些数据在天体物理模型中可能是重要的，当处理大约100纳米的光子波长(或向这些波长加权的辐射温度分布)时。例如，在这些波长和8400K的材料温度下，通过(第二电子激发)态的LTE平均PD截面比通过(第一电子激发)态的PD截面大三倍以上。
We present state-resolved (electronic, vibrational, and rotational) cross sections and rate coefficients for the photodissociation (PD) of and radiative association (RA) of H–H+. We developed a fully quantum mechanical approach within the nonrelativistic Born–Oppenheimer approximation to describe and calculate the data for transitions between the ground electronic state 1 and the 2 , , , , 4 , , , and electronic states (i.e., up to n = 4). Tables of the dipole-matrix elements and energies needed to calculate state-resolved cross sections and rate coefficients will be made publicly available. These data could be important in astrophysical models when dealing with photon wavelengths (or radiation temperature distributions that are weighted toward such wavelengths) around 100 nm. For example, at these wavelengths and a material temperature of 8400 K, the LTE-averaged PD cross section via the (second electronically excited) state is over three times larger than the PD cross section via the (first electronically excited) state.