Abstract

In the interaction of high-energy electrons with gases of planetary atmospheres where the primary component is molecular nitrogen, a significant fraction of particle energy is spent on the excitation of electronically excited triplet states of N₂. The processes of energy transfer from metastable molecular nitrogen \({{{\text{N}}}_{{\text{2}}}}\left( {{{{\text{A}}}^{{\text{3}}}}\Sigma _{{\text{u}}}^{ + }} \right)\) to other components in the atmosphere of the Earth (a mixture of N₂–O₂–O gases), as well as in the atmospheres of Titan, Triton, and Pluto (a mixture of N₂–CH₄–CO gases), are considered. The paper discusses the processes in which metastable molecular nitrogen \({{{\text{N}}}_{{\text{2}}}}\left( {{{{\text{A}}}^{{\text{3}}}}\Sigma _{{\text{u}}}^{ + }} \right)\) affects the kinetics of electronically excited atomic and molecular oxygen in the auroral ionosphere of the Earth. In addition, it is shown numerically for the first time that the contribution of \({{{\text{N}}}_{{\text{2}}}}\left( {{{{\text{A}}}^{{\text{3}}}}\Sigma _{{\text{u}}}^{ + }} \right)\) to the formation of electronically excited carbon monoxide CO(a³Π) increases significantly with increasing density in the atmospheres of Titan, Triton, and Pluto, and becomes predominant for the lower vibrational levels of CO(a³Π).

中文翻译：

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地球，海卫一，泰坦和冥王星大气中亚稳态分子氮的动力学研究

摘要

在高能电子与主要成分是分子氮的行星大气气体的相互作用中，很大一部分粒子能量被用于激发N ₂的电子激发三重态。来自亚稳态分子氮的能量转移过程\ {{{{text {N}}} _ {{text {2}}}}} \ left（{{{{\ text {A}}} ^ {{\ text {3}}}} \ Sigma _ {{\ text {u}}} ^ {+}} \ right）\）到地球大气中的其他成分（N ₂ -O ₂ -O气体的混合物）），以及在泰坦，特里顿和冥王星（N ₂ -CH ₄ -CO气体的混合物）的大气中。本文讨论了亚稳态分子氮的过程\（{{{\ text {N}}} _ {{\ text {2}}}} \ left（{{{{\ text {A}}} ^ {{\ text {3}}}} \\ Sigma _ {{\ text {u}}} ^ {+}} \ right）\）影响地球极光电离层中电子激发的原子和分子氧的动力学。此外，这是第一次从数字上显示\（{{{text {N}}} _ {{\ text {2}}}} \ left（{{{{\ text {A} }} ^ {{\文本{3}}}} \西格玛_ {{\文本【U}}} ^ {+}} \右）\）至电子激发一氧化碳CO的形成（一个³ Π）的增加显著与泰坦的Triton和冥王星，的大气压增加密度并且变成主要为CO的较低振动能级（一个³ Π）。