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Ionization losses of the Earth's radiation belt protons according to the radial diffusion theory

机译:根据径向扩散理论的地球辐射带质子的电离损失

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摘要

Using modern models of the plasmasphere and exosphere, radial profiles of the rates of ionization losses of protons with mu = 0.3-10 keVT (mu is the first adiabatic invariant) of the Earth's radiation belts (ERBs) have been constructed. To calculate Coulomb losses of protons, we used the ISEE-1 satellite data at L = 3-9 and CRRES satellite data at L aecurrency sign 3 (L is the McIlwain parameter). The relation of contributions of Coulomb losses and charge exchange in the rate of ionization losses of protons has been considered. We have discovered the effect of subtracting Coulomb losses from charge exchange of ERB protons for small mu and L, which can imitate a local particle source. It has been demonstrated that, with decreasing L, the rate of ionization losses of ERB protons decreases as a whole. The radial dependence of this rate only has a negative gradient in the narrow range (Delta L similar to 0.5) in the region of the plasmapause and only for protons with mu > 1.2 keVT.
机译:使用等离子层和外层层的现代模型,构建了辐射带(ERB)的mu = 0.3-10 keV / nT(mu是第一个绝热不变量)的质子的电离损失速率的径向分布图。为了计算质子的库仑​​损失,我们使用了L = 3-9处的ISEE-1卫星数据和L并发符号3(L是McIlwain参数)处的CRRES卫星数据。已经考虑了库仑损失和电荷交换的贡献与质子的电离损失的速率之间的关系。我们已经发现从ERB质子的电荷交换中减去小μ和L可以减去库仑损耗,这种效果可以模拟局部粒子源。已经证明,随着L的减小,ERB质子的电离损失的速率总体上减小。该速率的径向依赖性仅在等离子暂停区域内的窄范围内(ΔL类似于0.5)具有负梯度,并且仅对于mu> 1.2 keV / nT的质子。

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  • 来源
    《Cosmic research》 |2016年第4期|270-278|共9页
  • 作者

    Kovtyukh A. S.;

  • 作者单位

    Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia;

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  • 正文语种 eng
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