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OI 630.0‐nm and N2 1PG Emissions in Pulsating Aurora Events Observed by an Optical Spectrograph at Tromsø, Norway
Journal of Geophysical Research: Space Physics ( IF 2.6 ) Pub Date : 2020-11-13 , DOI: 10.1029/2020ja028250
T. T. Tsuda 1 , C. Li 1 , S. Hamada 1 , K. Hosokawa 1 , S.‐i. Oyama 2, 3, 4 , S. Nozawa 2 , T. Kawabata 2 , A. Mizuno 2 , J. Kurihara 5 , T. Nishiyama 3, 6 , M. J. Kosch 7, 8, 9
Affiliation  

We performed observations of pulsating aurora (PsA) with an optical spectrograph at Tromsø, Norway, during wintertime in 2016–2017. The data analysis of multiple PsA events revealed the PsA spectra for the first time. As the results, the OI 630.0‐nm emissions and the N2 1PG emissions were found in the both spectra during brighter (ON) and darker (OFF) phases in the PsA events. The spectra of pulsations were derived as difference spectra between the ON and OFF spectra. From the obtained spectra of pulsations, it is found that dominant pulsations at 630.0 nm were coming from the N2 1PG (10,7) band, and there were less or minor contributions of the OI 630.0 nm to pulsations at 630.0 nm.

中文翻译:

挪威特罗姆瑟光学光谱仪观测到的脉冲极光事件中的OI 630.0 nm和N2 1PG发射

在2016-2017年冬季,我们在挪威特罗姆瑟用光学光谱仪对脉动极光(PsA)进行了观测。多个PsA事件的数据分析首次显示了PsA光谱。结果,在PsA事件的亮(ON)和暗(OFF)阶段的两个光谱中都发现了OI 630.0-nm发射和N 2 1PG发射。脉动谱被导出为ON谱和OFF谱之间的差异谱。从获得的脉动光谱中,发现在630.0 nm处的主要脉动来自N 2 1PG(10,7)谱带,并且OI 630.0 nm对630.0 nm处的脉动贡献较小或较小。
更新日期:2020-12-01
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