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Long-Term Modulation of Cosmic Rays in Solar Cycles 23–24

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract—

A major trend in the solar magnetic field that began at the end of solar cycle 22 continues to be observed. The main characteristics of the solar magnetic field and the associated heliospheric field are crucial to the modulation of cosmic rays. Long-period variations of cosmic rays in cycles 23–24 show a weakening of the solar magnetic field. A comparison of these variations and those of the previous cycles (21–22) reveals features of the modulation in the last two cycles. It is now the weakest ever in the period of neutron monitor operation.

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ACKNOWLEDGMENTS

This work was based on experimental data from Unique Scientific Installation of the Russian National Network of Cosmic Ray Stations. We thank the staff of the network of cosmic ray stations for their help (http://cr0.izmiran.ru/ThankYou).

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Authors and Affiliations

  1. Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation, Russian Academy of Sciences, 108840, Moscow, Russia

    V. G. Yanke, A. V. Belov & R. T. Gushchina

Authors
  1. V. G. Yanke
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  2. A. V. Belov
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  3. R. T. Gushchina
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Corresponding author

Correspondence to R. T. Gushchina.

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Translated by O. Pismenov

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Yanke, V.G., Belov, A.V. & Gushchina, R.T. Long-Term Modulation of Cosmic Rays in Solar Cycles 23–24. Bull. Russ. Acad. Sci. Phys. 85, 1045–1048 (2021). https://doi.org/10.3103/S1062873821090355

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  • DOI: https://doi.org/10.3103/S1062873821090355

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