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arXiv · 2403.04554

Dissociative recombination of NS+ in collisions with slow electrons

R. Hassaine·F. Gauchet·F. Iacob·J. Zs Mezei·E. Roueff·J. Tennyson·I. F. Schneider
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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.

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R. Hassaine, F. Gauchet, F. Iacob, J. Zs Mezei, E. Roueff, J. Tennyson, I. F. Schneider. 2024-03-07. Dissociative recombination of NS+ in collisions with slow electrons. https://arxiv.org/abs/2403.04554

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