Abstract The three-body recombination of oxygen atoms O + O + M → O2(el) + M is the dominant process of oxygen excitation in the Earth’s nightglow at altitudes of 85 - 110 km. The rate coefficient of this reaction, as well as the quantum yields of electronically excited products (O2(el) in the electronic states: 5πg, A3 Σ u + , A’3Δu, c1 Σ u + , b1 Σ g + , a1Δg, X3 Σ g - ) depend on the gas kinetic temperature. In addition to the direct one-stage excitation channel of these levels of the O2 molecule, the Barth’s mechanism considers the two-stage energy transfer channel. In this channel, higher excited levels of the O2 act as precursors for the excitation of the O(1S) atom and the underlying electronic levels of the O2. In this study, we use sensitivity analysis to consider the temperature dependence of the processes of excitation and quenching for each of the excited components. The analytical expressions are obtained for the sensitivity coefficients of the Volume Emission Rates depending on temperature for the green line of atomic oxygen O(1S→1D), the Herzberg I band O2(A3 Σ u + → X 3 Σ g - ) and O2 Atmospheric band O2(b1 Σ g + , v ' = 0 → X 3 Σ g - , v ' ' = 0). With the help of the sensitivity analysis performed in this work, we (a) confirm that the state O 2 5 π g , produced by the three-body recombination of atomic oxygen, is a precursor for the formation of O2(b1 Σ g + ), (b) estimate the quantum yield of the O2(b1 Σ g + ) state formed as a result of collisional reaction O 2 5 π g with O2, and (c) propose a method for determining a type of precursor for production of O(1S) in the Barth's mechanism.

中文翻译：

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在 Barth 机制的框架内，大气温度如何影响氧气排放强度

摘要 氧原子O+O+M→O2(el)+M的三体复合是地球85~110km高度夜光中氧激发的主要过程。该反应的速率系数，以及电子激发产物的量子产率（电子态的 O2(el)：5πg, A3 Σ u + , A'3Δu, c1 Σ u + , b1 Σ g + , a1Δg, X3 Σ g - ) 取决于气体动力学温度。除了这些 O2 分子水平的直接一级激发通道外，Barth 机制还考虑了二级能量转移通道。在该通道中，O2 的较高激发水平充当激发 O(1S) 原子和 O2 的潜在电子水平的前体。在这项研究中，我们使用灵敏度分析来考虑每个激发组件的激发和淬灭过程的温度依赖性。获得了体积发射率的灵敏度系数的解析表达式取决于原子氧绿线 O(1S→1D)、Herzberg I 带 O2(A3 Σ u + → X 3 Σ g - ) 和 O2 的温度大气波段 O2(b1 Σ g + , v ' = 0 → X 3 Σ g - , v ' ' = 0)。在这项工作中进行的敏感性分析的帮助下，我们 (a) 确认由原子氧的三体复合产生的状态 O 2 5 π g 是形成 O2(b1 Σ g + ), (b) 估计 O2(b1 Σ g + ) 态的量子产率，该态是由 O 2 5 π g 与 O2 的碰撞反应形成的，