Abstract Hydroxyl vibrational excited states O H ∗ in the Earth’s ionosphere are investigated numerically in the presence of suprathermal electrons. The latter are included by using a Boltzmann equation numerical solver and a numerical cross-section for electron impact with O H . We have found that important changes in the peak altitude of O H ∗ occur when geomagnetic activities vary. In addition, nighttime changes in solar activity and initial energy of precipitating electrons have minor effect on both peaks altitude and density of O H ∗ .

中文翻译：

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夜间OH振动激发态产率分析

摘要 在超热电子存在下，对地球电离层中的羟基振动激发态 OH ∗ 进行了数值研究。后者通过使用玻尔兹曼方程数值求解器和电子与 OH 碰撞的数值横截面包括在内。我们发现，当地磁活动发生变化时，OH* 的峰值高度会发生重要变化。此外，太阳活动的夜间变化和沉淀电子的初始能量对 OH ∗ 的峰值高度和密度的影响较小。