15 Nov 2022
15 Nov 2022
Status: this preprint is open for discussion.

Study of Magnetosphere Dynamics under Various Alfven Mach Numbers for the Northward IMF Condition: 3D Global PIC Simulations

Amin Esmaeili1, Muhammad Ikram2, Abdullah Khan3, and Abid Ali Abid3 Amin Esmaeili et al.
  • 1University of Tehran, Institute of Geophysics, Space Physics group, Tehran, Iran
  • 2Department of Physics, Hazara University, 21300 Mansehra, Pakistan
  • 3CAS Key Laboratory of Geospace Environment, Department of Geospace and Planetary Science, University of Science and Technology of China, Hefei, Anhui 230026, China

Abstract. For a long time, the interactions of the solar wind with the Earth’s magnetosphere have been analyzed with the help of three-dimensional (3D) global particle-in-cell (PIC) simulation where the interplanetary magnetic field (IMF) is steadily northward. Yet the Earth’s magnetosphere and the Kelvin-Helmholtz Instability (KHI) in a global, dayside and nightside magnetotail configuration using the 3D PIC simulations has not been well examined. In this work, we compared the simulation results for both high and low Alfven Mach numbers of MA=5 and MA=1, respectively. Our results show diverse magnetospheric dynamics by taking into account the various Alfvenic Mach conditions. The relationship between the upstream magnetohydrodynamic (MHD) turbulence in the solar wind and Earth's magnetosphere behavior is investigated. In both the meridian and equatorial planes, the effects of Alfven Mach number on magnetospheric characteristics such as electron/ion densities and current densities are explored. The structure of the magnetosphere is also investigated at high and low Alfven Mach numbers. The solar-terrestrial interaction as a result of various solar activities is investigated in this work utilizing a large-scale global three-dimensional PIC simulation.

Amin Esmaeili et al.

Status: open (until 27 Dec 2022)

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Amin Esmaeili et al.

Amin Esmaeili et al.


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Short summary
This paper investigates the dynamics of the magnetosphere during different Alfven Mach numbers and compares the results with observational data. The IMF is northward for this study.