Abstract
MHD shock waves and discontinuities are often observed in the solar wind. We studied a strong shock wave event on 7 June 2014, during a solar maximum. The properties of forward shock are investigated and all physical parameters of interplanetary shock are analyzed. The upstream parameters, such as Alfven velocity and sound speed are calculated, and the angle (\({\theta }\)) between the upstream magnetic field direction and the shock normal is estimated. To determine the propagation speed of the shock, a full numerical solution of shock adiabatic equation is carried out. The thermal pressure for electrons and ions are calculated and also the pressure ratio and the entropy change across the shock are estimated. The results show that the shock strength is about 3.88 with \({\theta }\approx \text{72 }^{\circ }\) (a quasi-perpendicular case), and shock propagation velocity is about 678 km/s. The increase in the specific entropy is also evaluated.
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Kalaee, M.J. A computational study of the properties of the quasi-perpendicular fast forward shock event during solar maximum. J Astrophys Astron 41, 2 (2020). https://doi.org/10.1007/s12036-020-9622-1
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DOI: https://doi.org/10.1007/s12036-020-9622-1