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Abrupt changes of density in sporadic solar wind and their effect on Earth magnetosphere

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Abstract

In a magnetic cloud, which is part of a sporadic solar wind on the Earth orbit, against the background of a constant solar wind velocity, abrupt jumps in the solar wind density and antiphase, highly correlated (correlation coefficient R∼−0.9) variations of the magnitude of the strength of the interplanetary magnetic field were detected. Analysis has shown that these jumps, which represent fibers or eruptive protuberances, result, when interacting with the Earth magnetosphere, in the development of a high-latitude magnetic disturbance, starting on the dayside and propagating into the morning and evening sides of the magnetosphere. The processes, developing in the auroral region during this disturbance, are similar to processes occurring during the substorm, but they are characterized by a shorter duration and lower value of released energy.

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Authors and Affiliations

  1. Baikal State University of Economics and Law, Irkutsk, Russia

    V. A. Parkhomov

  2. Space Research Institute, Russian Academy of Sciences, Profsoyuznaya st. 84/32, Moscow, 117997, Russia

    N. L. Borodkova

  3. Siberian Department of the Russian Academy of Sciences, Institute of Solar-Terrestrial Physics, Irkutsk, Russia

    V. G. Eselevich & M. V. Eselevich

Authors
  1. V. A. Parkhomov
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  2. N. L. Borodkova
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  3. V. G. Eselevich
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  4. M. V. Eselevich
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Corresponding author

Correspondence to V. A. Parkhomov.

Additional information

Original Russian Text © V.A. Parkhomov, N.L. Borodkova, V.G. Eselevich, M.V. Eselevich, 2015, published in Kosmicheskie Issledovaniya, 2015, Vol. 53, No. 6, pp. 449–460.

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Parkhomov, V.A., Borodkova, N.L., Eselevich, V.G. et al. Abrupt changes of density in sporadic solar wind and their effect on Earth magnetosphere. Cosmic Res 53, 411–422 (2015). https://doi.org/10.1134/S0010952515050093

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  • DOI: https://doi.org/10.1134/S0010952515050093

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