The Vertical Distribution of the Optical Emissions of a Steve and Picket Fence Event
The Vertical Distribution of the Optical Emissions of a Steve and Picket Fence Event
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史蒂夫和栅栏事件的光学发射的垂直分布
DOI：
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发表时间：
2019
影响因子：
5.2
通讯作者：
D. Eurich
中科院分区：
文献类型：
--
作者：
W. Archer;J. St.‐Maurice;B. Gallardo‐Lacourt;G. W. Perry;Christopher Cully;Eric Donovan;D. Gillies;R. Downie;J. Smith;D. Eurich
极光摄影师最近发现了所谓的“史蒂夫”（Steve）亚极光紫色发射，其起源迅速成为激烈争论的话题。在一些事件中，附近的周期性绿色发射也被发现，并因其外观被命名为“栅栏”（picket fence）。本文通过缩小史蒂夫和栅栏发射的高度范围，增进了我们对这些现象的理解。我们的判定基于2017年9月16日的事件，该事件从两个有利位置同时被观测到，从而可以通过三角测量确定史蒂夫和栅栏的高度范围。我们表明栅栏在95公里至150公里的高度之间延伸，并与地磁场对齐，而史蒂夫的高度范围在130公里至270公里之间。我们还表明这两种现象位于附近，或者可能在同一条磁力线上。
So‐called “Steve” subauroral purple emissions have recently been uncovered by auroral photographers and have rapidly become an intense subject of debate as to their origin. In some events, nearby periodic green emissions have also been uncovered and given the name “picket fence,” owing to their appearance. The present paper advances our understanding of these phenomena by narrowing down the altitude extent of the Steve and picket fence emissions. Our determination is based on the event of 16 September 2017, which was simultaneously observed from two vantage points, allowing for a determination of the height range of Steve and picket fence through triangulation. We show that the picket fence extend between 95‐ and 150‐km altitude and is aligned with the geomagnetic field, while the Steve altitude spread is between 130 and 270 km. We also show the two phenomena to be on nearby or perhaps the same magnetic field lines.
关于史蒂夫的起源：粒子降水还是电离层天辉？
影响因子：
5.2
作者：
Gallardo-Lacourt, B.;Liang, J.;Nishimura, Y.;Donovan, E.
通讯作者：
Donovan, E.