Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095779 |
A Tale of Two Radiation Belts:The Energy-Dependence of Self-Limiting Electron Space Radiation | |
L. Olifer; I. R. Mann; A. Kale; B. H. Mauk; S. G. Claudepierre; D. N. Baker; H. E. Spence; L. G. Ozeke | |
2021-10-07 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | The flux of energetic electrons in the terrestrial Van Allen belts varies by orders of magnitude during a magnetic storm. Here, we show how the dynamics of these electrons are clearly separated by energy into two distinct populations which are governed by different storm-time behavior. We reveal how self-limiting processes, described theoretically by Kennel and Petschek (1966), govern the energy-dependent dynamics of the electrons. For terrestrial magnetic storms, accelerated electrons with energies below 850 keV quickly reach a maximum energy-dependent differential flux level which is almost the same in every storm. Higher energy electrons typically do not reach a limiting flux and instead are governed by the differential impacts of competing acceleration and loss mechanisms. In general, electron fluxes saturate at the Kennel-Petschek limit first at lower energies, impacting higher energies later in the storm. For the most intense storms, the maximum energy at which the fluxes are capped can also increase. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/339922 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | L. Olifer,I. R. Mann,A. Kale,et al. A Tale of Two Radiation Belts:The Energy-Dependence of Self-Limiting Electron Space Radiation[J]. Geophysical Research Letters,2021. |
APA | L. Olifer.,I. R. Mann.,A. Kale.,B. H. Mauk.,S. G. Claudepierre.,...&L. G. Ozeke.(2021).A Tale of Two Radiation Belts:The Energy-Dependence of Self-Limiting Electron Space Radiation.Geophysical Research Letters. |
MLA | L. Olifer,et al."A Tale of Two Radiation Belts:The Energy-Dependence of Self-Limiting Electron Space Radiation".Geophysical Research Letters (2021). |
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