The Far Ultraviolet Signatures of Conjugate Photoelectrons Seen by the Special Sensor Ultraviolet Spectrographic Imager
The Far Ultraviolet Signatures of Conjugate Photoelectrons Seen by the Special Sensor Ultraviolet Spectrographic Imager
复制标题
特殊传感器紫外光谱成像仪观察到的共轭光电子的远紫外特征
DOI：
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发表时间：
2020
影响因子：
5.2
通讯作者：
G. Jee
中科院分区：
文献类型：
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作者：
H. Kil;R. Schaefer;L. Paxton;G. Jee
本研究调查了国防气象卫星系统 F16 卫星上的特殊传感器紫外光谱成像仪在夜间观测到的亚极光区域异常远紫外线发射的起源。异常发射的全球分布是通过 2017 年氧原子 130.4 nm 发射的测量得出的。我们的结果显示，在 12 月至日期间的北美-大西洋区域和 6 月至日期间，异常发射从高纬度地区延伸至中纬度地区。这些观测结果表明，异常发射发生在冬季半球，并且在靠近磁极的位置尤为明显。反常发射的形态与共轭光电子的预测分布之间的良好一致性得出这样的结论：反常发射是共轭光电子的特征。
This study investigates the origin of anomalous far ultraviolet emissions observed at night at the subauroral region by the Special Sensor Ultraviolet Spectrographic Imager on board the Defense Meteorological Satellite System‐F16 satellite. The global distribution of the anomalous emission is derived using the measurements of the oxygen atom 130.4‐nm emission in 2017. Our results show the extension of the anomalous emission from high latitudes to middle latitudes in the Northern American‐Atlantic sector during the December solstice and in the Southern Australia‐New Zealand sector during the June solstice. These observations indicate that the anomalous emission occurs in the winter hemisphere and is pronounced at locations close to the magnetic poles. The good agreement between the morphology of the anomalous emission and the predicted distribution of conjugate photoelectrons leads to the conclusion that the anomalous emissions are the signatures of conjugate photoelectrons.