Photodetachment of the hydrogen and positronium negative ions
Photodetachment of the hydrogen and positronium negative ions
复制标题
氢和正电子负离子的光脱离
DOI：
10.1088/0953-4075/37/4/012
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
A. Frolov
中科院分区：
文献类型：
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作者：
A. Frolov
低能光子对 ∞H−、T−、D−、1H−、Mu− 和 Ps− 离子的光脱离根据二体团簇近似进行考虑。对于所有考虑的系统，实际三体波函数的渐近形式的常数 C 是根据高精度、完全非绝热的波函数确定的。该常数在此方法中起着核心作用，因为它允许确定每种所考虑离子的光脱离截面。计算出的 ∞H− 和 Ps− 离子的光脱离截面与早期研究的结果非常吻合。还考虑了具有有限核质量的 T−、D−、1H− 和 Mu− 离子的光脱离。 H−离子的光脱离在天体物理学中引起了极大的兴趣，因为它决定了太阳的连续光谱，并且一般来说，也决定了所有K型、G型和晚期F型恒星的连续光谱。
The photodetachment of the ∞H−, T−, D−, 1H−, Mu− and Ps− ions by low-energy photons is considered in terms of the two-body cluster approximation. For all considered systems the constant C in the asymptotic form of the actual three-body wavefunction is determined from highly accurate, completely non-adiabatic wavefunctions. This constant plays a central role in this method, since it allows one to determine the photodetachment cross-sections for each of the considered ions. The computed photodetachment cross-section for the ∞H− and Ps− ions agree quite well with the results of earlier studies. The photodetachment of the T−, D−, 1H− and Mu− ions with finite nuclear masses is also considered. The photodetachment of the H− ions is of great interest in astrophysics, since it determines the continuous spectra of our Sun and, in general, of all K-, G- and late F-type stars.