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在IMAP-超高能中性原子 (ENA) 影像仪.

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此摘要是机器生成的。

美国宇航局的IMAP-Ultra仪器绘制了日球中的能量中性原子 (ENAs). 它提供高分辨率ENA地图来跟踪外层日球的变化,这对于了解太空天气至关重要.

关键词:
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科学领域:

  • 空间物理 空间物理
  • 太空物理学 太空物理学
  • 天体物理学 天体物理学

背景情况:

  • 外层日球受能量粒子的影响.
  • 能量中性原子 (ENA) 是这些粒子相互作用的关键指标.
  • 了解ENA排放有助于绘制日球过程的地图.

研究的目的:

  • 介绍IMAP-Ultra仪器的能力.
  • 为了证明Ultra能够测量高能ENAs的能力.
  • 为了突出Ultra对日球测绘的贡献.

主要方法:

  • 使用L1.1周围轨道上的IMAP航天器.
  • 使用两个传感器 (Ultra90和Ultra45) 的IMAP-Ultra仪器.
  • 测量高空间分辨率的~3 - 300 keV的ENAs.

主要成果:

  • 超级测量高能ENAs (H) 从5 - 40keV,证明范围高达300keV.
  • 在≥10 keV H ENA中达到≤6° FWHM的角分辨率.
  • 生成了具有高空间分辨率的全日球地图.

结论:

  • IMAP-Ultra提供了空前的日球的高分辨率ENA地图.
  • 这些观测可以追踪太阳周期和其他变化.
  • 超级是了解粒子加速和运输在外层日球中至关重要的.