OI 630.0‐nm and N2 1PG Emissions in Pulsating Aurora Events Observed by an Optical Spectrograph at Tromso, Norway
OI 630.0‐nm and N2 1PG Emissions in Pulsating Aurora Events Observed by an Optical Spectrograph at Tromso, Norway
复制标题
挪威特罗姆瑟光学摄谱仪观测到的脉动极光事件中的 OI 630.0 nm 和 N2 1PG 发射
DOI：
10.1029/2020ja028250
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Kosch M. J.
中科院分区：
文献类型：
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作者：
Tsuda T. T.;Li C.;Hamada S.;Hosokawa K.;Oyama S.‐i.;Nozawa S.;Kawabata T.;Mizuno A.;Kurihara J.;Nishiyama T.;Kosch M. J.
2016-2017年冬季，我们在挪威特罗莫斯使用光学光谱仪对脉动极光(PSA)进行了观测。对多个PSA事件的数据分析首次揭示了PSA频谱。结果表明，在PSA事件的亮(开)和暗(关)两个阶段，OI 630.0 nm发射和N21PG发射都出现在这两个光谱中。脉动谱由开光谱和离光谱之间的差谱得到。从得到的脉动谱可以看出，630.0 nm的脉动主要来自N21PG(10，7)带，OI 630.0 nm对630.0 nm的脉动贡献很小或很小。
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 N21PG 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 N21PG (10,7) band, and there were less or minor contributions of the OI 630.0 nm to pulsations at 630.0 nm.