Volume 33 Issue 3
May  2013
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Article Navigation >  Chinese Journal of Space Science  > 2013  >  33(3): 240-249
Cao Xin, L&# Jianyong, Yang Zhiliang, Liu Ziqian, Yang Yafen, Zhao Mingxian. Trajectory method of 3D test particles in global transport in magnetosphere[J]. Chinese Journal of Space Science, 2013, 33(3): 240-249. doi: 10.11728/cjss2013.03.240
Citation: Cao Xin, L&# Jianyong, Yang Zhiliang, Liu Ziqian, Yang Yafen, Zhao Mingxian. Trajectory method of 3D test particles in global transport in magnetosphere[J]. Chinese Journal of Space Science, 2013, 33(3): 240-249. doi: 10.11728/cjss2013.03.240
shu

Trajectory method of 3D test particles in global transport in magnetosphere

doi: 10.11728/cjss2013.03.240 cstr: 32142.14.cjss2013.03.240
  • 1.

    Department of Astronomy, Beijing Normal University, Beijing 100875

  • 2.

    National Center for Space Weather, China Meteorological Administration, Beijing 100081

  • 3.

    College of Mathematics and Statistics, Nanjing University of Information Science and Technology, Nanjing 210044

  • Received Date: 2012-05-07
  • Rev Recd Date: 2012-11-22
  • Publish Date: 2013-05-15
    Abstract
  • Based on the theory of magnetospheric particle dynamics and the trajectory method of 3D test particles, we firstly verified charged particles' dynamic characters under a dipole field model for the inner magnetosphere situation (r < 8Re). Then, using a global MHD model as the magnetospheric background, the trajectory method of 3D test particles is employed to investigate the injection of solar wind ions into the magnetosphere during the southward IMF, and to simulate several different typical situations of the injection of the particle into the cusp region during the northward IMF. The simulation results not only reveals the possible processes of the particle injection into the cusp region for northward IMF, but also indicates the general distribution of the particles originally from the solar wind in the magnetosheath and magnetosphere, and the dawn-dusk asymmetry of the particles' density during the southward IMF. The simulation results are coincident with the theory and observation of magnetospheric dynamics. And for the first time, it is indicated by numerical simulation that an atypical magnetic mirror near the polar cusp region plays an important role in the particles' injection from the cusp region to ring current region during northward IMF.

     

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