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Detection of Strongly Turbulent Regions in the Supercorona with the Venus Express and Mars Express Satellites

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Abstract

Experiments involving the radio sounding of solar plasma with signals from the Venus Express and Mars Express spacecraft, which were carried out from October 6 to December 6, 2006, provided data on frequency fluctuations of the radio signals for the western and eastern coronal limbs. The processing of this data provided information on the intensity of the frequency fluctuations, a parameter of plasma turbulence. High peaks of the intensity of frequency fluctuation were noted against the background of radial dependence; they can be explained by the passage of the compressed part of a corotating disturbance through a radio ray path. A delay in these events indicates a high-level connection of the fluctuations in the sounding radio-signal frequency within the same coronal region.

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Funding

The work was performed within State Assignment no. 0030-2019-0008.

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Authors and Affiliations

  1. Kotelnikov Institute of Radio Engineering and Electronics, Fryazino Branch, Russian Academy of Sciences, Fryazino, Russia

    A. I. Efimov, L. A. Lukanina & V. M. Smirnov

  2. Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia

    I. V. Chashei

  3. Argelander Institute for Astronomy, University of Bonn, Bonn, Germany

    M. K. Bird

  4. Institute for Environmental Research, University of Cologne, Cologne, Germany

    M. K. Bird & M. Paetzold

Authors
  1. A. I. Efimov
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  2. L. A. Lukanina
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  3. V. M. Smirnov
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  4. I. V. Chashei
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  5. M. K. Bird
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  6. M. Paetzold
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Corresponding author

Correspondence to A. I. Efimov.

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The authors declare that they have no conflicts of interests.

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Translated by O. Ponomareva

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Efimov, A.I., Lukanina, L.A., Smirnov, V.M. et al. Detection of Strongly Turbulent Regions in the Supercorona with the Venus Express and Mars Express Satellites. Geomagn. Aeron. 61, 293–298 (2021). https://doi.org/10.1134/S001679322103004X

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  • DOI: https://doi.org/10.1134/S001679322103004X

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