The influence of CIRs on the energetic electron flux at 1 AU
The influence of CIRs on the energetic electron flux at 1 AU
复制标题
CIR 对 1 AU 时高能电子通量的影响
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
S. Ferreira
中科院分区：
文献类型：
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作者：
R. Kissmann;H. Fichtner;S. Ferreira
关于共旋相互作用区域（CIR）已经做了很多工作，例如参见Balogh等人（1999）。除了CIR对太阳风等离子体环境的实际影响外，CIR对高能粒子群的影响也引起了特别的兴趣。在本文中，我们研究了CIR对木星电子的传播位于1 Au的航天器的影响。最近在这一领域的建模一直集中在当地的影响，在距离大于1 Au的CIR的电子通量。这是因为在更大的空间尺度上建模，从而更接近太阳，需要一个3D数值模型，其中还包括强度的能量和时间依赖性。通过我们最近开发的数值模型，我们能够满足这些要求。我们显示的计算结果的CIR的木星和银河系的电子强度在1 Au的影响，相比IMP 8航天器所采取的数据，并讨论的CIR效应对高能电子的运输的影响。
Much work has been done on Corotating Interaction Regions (CIRs), see e.g. Balogh et al. (1999). Apart from the actual impact of CIRs on the solar wind plasma environment, the influence of CIRs on energetic particle populations has been of special interest. In this paper we study the influence of a CIR on the propagation of Jovian electrons to a spacecraft located at 1 AU. Recent modelling in this field has been concentrated on the local influence of CIRs on the electron flux at distances greater than 1 AU. This is due to the fact that modelling on larger spatial scales thus reaching closer to the Sun requires a 3D numerical model which also includes an energy and time dependence of the intensities. With our recently developed numerical model we were able to fulfil these requirements. We show the results of the calculated influence of CIRs on the Jovian and Galactic electron intensity at 1 AU, compared to data taken by the IMP 8 spacecraft, and discuss the implications for the CIR effects on the transport of energetic electrons.