Abstract
The change in the properties of the solar wind flow as it crosses the bow shock wave front and moves in the Earth’s magnetosheath are discussed. Solar wind data are used to study the refraction of magnetohydrodynamic (MHD) shock waves and the stationary tangential discontinuity of the solar wind into the magnetosheath. It is shown that the refraction of the solar-wind rotational discontinuity into the magnetosheath is accompanied by the emergence of a plateau-type plasma inhomogeneity with respect to the density of charged particles, with a simultaneous decrease in the magnetic field intensity. Moreover, the breaking of the secondary MHD contraction wave, reflected from the magnetopause, may be accompanied by the emergence of a fast reverse shock wave.
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REFERENCES
Alexandrova, O., Solar wind vs magnetosheath turbulence and the Alfvén vortices, Nonlinear Processes Geophys., 2008, vol. 15, pp. 95–108.
Alexandrova, O., Mangeney, A., Maksimovich, M., et al., Alfvén vortex filaments observed in magnetosheath downstream of a quasiperpendicular bow shock, J. Geophys. Res.: Space Phys., 2006, vol. 111, A121.
Barmin, A.A. and Pushkar’, E.A., Nonregular interaction of shock waves in magnetohydrodynamics, Fluid Dyn., 1993, vol. 28, no. 4, pp. 575–585.
Barmin, A.A. and Pushkar’, E.A., Oblique interaction of an Alfvén discontinuity and a fast magnetohydrodynamic shock wave propagating in opposite directions, Fluid Dyn., 1997, vol. 32, no. 6, pp. 857–869.
Eselevich, V.G., Eselevich, M.V., Zimovets, I.V. and Sharykin, I.N., Evidence for shock generation in the solar corona in the absence of coronal mass ejections, Astron. Rep., 2017, vol. 61, no. 9, pp. 805–819.
Grib, S.A., On one mechanism for the generation of a reverse solar wind shock in the magnetosheath in front of the Earth’s magnetosphere, Astron. Lett., 2011, vol. 37, no. 12, pp. 888–893.
Grib, S.A. and Leora, S.N., Features in the behavior of the solar wind behind the bow shock front near the boundary of the Earth’s magnetosphere, Geomagn. Aeron. (Engl. Transl.), 2017, vol. 57, no. 8, pp. 1073–1076.
Grib, S.A., Koutchmy, S., and Sazonova, V.N., MHD shock interactions in coronal structures, Sol. Phys., 1996, vol. 168, pp. 151–166.
Grib, S.A., Pushkar, E.A., and Leora, S.N., Some sources of plasma inhomogeneities in the solar wind in front of the Earth’s magnetosphere, Geomagn. Aeron. (Engl. Transl.), 2016, vol. 56, no. 7, pp. 45–49.
Karlsson, T., Kullen, A., Liljeblad, E., et al., On the origin of magnetosheath plasmoids and their relation to magnetosheath jets, J. Geophys. Res., 2015, vol. 120, no. 9, pp. 7390–7403.
Karlsson, T., Liljeblad, E., Kullen, A., et al., Isolated magnetic field structures in Mercury’s magnetosheath as possible analogues for terrestrial magnetosheath plasmoids and jets, Planet. Space Sci., 2016, vol. 129, pp. 61–73.
Kulikovskii, G.A. and Lyubimov, A., Magnitnaya gidrodi-namika (Magnetohydrodynamics), Moscow: Logos, 2005.
Pallocchia, G., A sunward propagating fast wave in the magnetosheath observed after the passage of an interplanetary shock, J. Geophys. Res., 2013, vol. 118, pp. 331–339.
Parkhomov, V.F., Borodkova, N.L., Eselevich, V.G., Eselevich, M.V., Dmitriev, A.V., and Chilikin, V.E., Features of the impact of the solar wind diamagnetic structure on Earth’s magnetosphere, Sol-Terr. Phys., 2017, vol. 3, no. 4, pp. 44–57. doi 10.12737/stp-34201705
Pushkar’, E.A., Collision of solar wind shock wave and near-Earth bow shock in a strong IMF: a three-dimensional MHD model, Izv. MGIU, Inf. Tekh. Model., 2008, no. 1, pp. 46–74.
Roberts, O.W., Li, X., and Li, B., Observations of Alfvén vortices in the fast solar wind, UK Sol. Phys., June 23, 2013.
Zhao, H.Y., Shen, X.C., Tang, B.B., et al., Magnetosphere vortices and their global effect after a solar wind dynamic pressure decrease, J. Geophys. Res., 2016, vol. 121, no. 2, pp. 1071–1077.
ACKNOWLEDGMENTS
This work was supported in part by the Presidium of the Russian Academy of Sciences, program no. P28.
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Translated by A. Kobkova
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Grib, S.A. Features of the Solar Wind Plasma Flow around the Earth’s Magnetosphere. Geomagn. Aeron. 58, 905–909 (2018). https://doi.org/10.1134/S0016793218070071
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DOI: https://doi.org/10.1134/S0016793218070071