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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Heavy Metal and Rock in Space: Cluster RAPID Observations of Fe and Si
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Heavy Metal and Rock in Space: Cluster RAPID Observations of Fe and Si

机译：在太空中重金属和摇滚:集群快速铁和Si的观察

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摘要

Metallic and silicate ions carry essential information about the evolution of the Earth and near-Earth small bodies. Despite this, there has so far been very little focus on ions with atomic masses higher than oxygen in the terrestrial magnetosphere. In this paper, we report on abundances and properties of energetic ions with masses corresponding to that of silicon (Si) and iron (Fe) in Earth's geospace. The results are based on a newly derived data product from the Research with Adaptive Particle Imaging Detectors on Cluster. We find traces of both Si and Fe in all of the regions covered by the spacecraft, with the highest occurrence rates and highest intensities in the inner magnetosphere. We also find that the Fe and Si abundances are modulated by solar activity. During solar maximum, the probability of observing Fe and Si in geospace increases significantly. On the other hand, we find little or no direct correlation between geomagnetic activity and Si and Fe abundance in the magnetosphere. Both Si and Fe in the Earth's magnetosphere are inferred to be primarily of solar wind origin.
机译：金属和硅酸盐离子携带必要的地球的进化和信息近地小身体。到目前为止很少关注离子与原子质量高于陆地中的氧气磁气圈。高能离子丰度和属性质量相应的硅(Si)和铁(Fe)在地球的地球空间。根据新产品的派生数据研究自适应粒子成像探测器在集群。所有的区域覆盖的航天器,出现率最高,最高强度的磁场。发现铁和硅丰度调制由太阳活动。在地球空间观察铁和Si的概率显著增加。发现很少或没有直接联系地磁活动和硅和铁丰度磁气圈。磁气圈推断是主要的太阳风。

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