期刊
GEOPHYSICAL RESEARCH LETTERS
卷 48, 期 4, 页码 -出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2020GL091134
关键词
Associative detachment; flow‐ drift tube; transient luminous events; lightning; streamers; atomic oxygen anion; molecular nitrogen
资金
- NSF [AGS-2010088]
The study analyzes the experimental setup of Rayment and Moruzzi (1978) regarding the reaction of O- with N-2, finding that vibrationally excited N-2 may have contaminated the results, requiring corrections to the theoretical approach and pointing out inconsistencies in the rate calculations. The requirement of vibrationally excited N-2 for the reaction indicates that it may only occur in later stages of discharge, suggesting the need for controlled experiments to reconcile existing literature.
Electron detachment from O- is important for understanding of lightning-induced upper atmospheric discharges. Contrary to previous studies, Rayment and Moruzzi (1978) (RM78) argue that the associative detachment reaction of O- with N-2 proceeds with N-2 in its ground state. Here, we analyze the experimental setup in RM78 and demonstrate that vibrationally excited N-2 may have in fact contaminated the results, the theoretical approach in RM78 requires corrections, and the rate calculations provided in RM78 are inconsistent. As the vibrational temperature of N-2 remains relatively low in the initial stages of gas discharges in air, i.e., streamer formation, we conclude that if in fact vibrationally excited N-2 is required for the O- + N-2 -> N2O + e reaction to proceed, the process will happen only in later stages of the discharge, e.g., during streamer to leader transition. Controlled experiments are required to reconcile the literature on the reaction of O- with ground state N-2.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据