Dissociative recombination of NS+ in collision with slow electrons

IF 1.5 4区 物理与天体物理 Q3 OPTICS
R Hassaine, F Gauchet, F Iacob, J Zs Mezei, E Roueff, J Tennyson and I F Schneider
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引用次数: 0

Abstract

Cross sections and rate coefficients for the dissociative recombination (DR) of the NS+ ion induced by collisions with low-energy electrons are reported for temperatures between 10 and 1000 K, relevant to a large range of interstellar cloud temperatures. Uncertainties are discussed for these rates. Comparisons are made with DR rates for the isovalent NO+ molecular ion which are found to be much faster. The present findings lead to a moderate dissociative reaction rate coefficient, smaller by a factor of 2 than the current estimates reported in the different kinetic databases for a temperature of 10 K. We consider that our rate coefficients obtained through multichannel quantum defect theory for NS+ are likely to be better than those displayed in the different kinetic databases.
NS+ 与慢速电子碰撞时的分解重组
报告了与低能电子碰撞诱发的 NS+ 离子离解重组(DR)的截面和速率系数,其温度介于 10 和 1000 K 之间,与星际云温度的大范围相关。讨论了这些速率的不确定性。与异价 NO+ 分子离子的 DR 速率进行了比较,发现后者要快得多。我们认为,我们通过多通道量子缺陷理论获得的 NS+ 的速率系数很可能优于不同动力学数据库中显示的速率系数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
3.60
自引率
6.20%
发文量
182
审稿时长
2.8 months
期刊介绍: Published twice-monthly (24 issues per year), Journal of Physics B: Atomic, Molecular and Optical Physics covers the study of atoms, ions, molecules and clusters, and their structure and interactions with particles, photons or fields. The journal also publishes articles dealing with those aspects of spectroscopy, quantum optics and non-linear optics, laser physics, astrophysics, plasma physics, chemical physics, optical cooling and trapping and other investigations where the objects of study are the elementary atomic, ionic or molecular properties of processes.
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