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Modeling variations in CR density in magnetic clouds

  • Proceedings of the 33rd National Conference on Cosmic Rays
  • Published:
Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

It is shown that the behavior of the cosmic ray density in a magnetic cloud near the Earth can for most events be described by a simple parabolic dependence on a distance to the cloud’s center, measured in gyro radii. Most magnetic clouds modulate cosmic rays, lowering their density. However, there are events (approximately 1/5) in which the cosmic ray density rises in a magnetic cloud. Events with the positive effect usually have a maximum in the leading part of the cloud. Several factors are considered that contribute to a model description, and these contributions are estimated.

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References

  1. Burlaga, L., Sittler, E., Mariani, F., and Schwenn, R., J. Geophys. Res., 1981, vol. 86, p. 6673.

    Article  ADS  Google Scholar 

  2. Zhang, S., Hess, P., and Poomvises, W.A., Solar Phys., 2013, vol. 284, no. 1, pp. 89–104.

    Article  ADS  Google Scholar 

  3. Yashiro, S., Gopalswamy, N., Makela, P., and Akiyama, S., Solar Phys., 2013, vol. 284, no. 1, pp. 5–15.

    Article  ADS  Google Scholar 

  4. Bothmer, V. and Schwenn, R., Ann. Geophys., 1998, vol. 16, no. 1, pp. 1–23.

    Article  ADS  Google Scholar 

  5. Kuwabara, T., Bieber, J., Evenson, P., et al., J. Geophys. Res. A, 2009, vol. 114, no. 5. doi 10.1029/2008JA013717

    Google Scholar 

  6. Richardson, I. and Cane, H., Solar Phys., 2010, vol. 264, no. 1, pp. 189–237.

    Article  ADS  Google Scholar 

  7. Gosling, J.T., Geophys. Monogr. Ser., 1990, vol. 58, pp. 343–364.

    Google Scholar 

  8. Huttunen, K., Schwenn, R., Bothmer, V., and Koskinen, H., Ann. Geophys., 2005, vol. 23, no. 2, p. 625.

    Article  ADS  Google Scholar 

  9. Belov, A., Baisultanova, L., Eroshenko, E., Yanke, V., Mavromichalaki, H., Plainaki, C., Mariatos, G., and Pchelkin, V., J. Geophys. Res., 2005, vol. 110, p. A09S20. doi 10.1029/2005JA011067

    ADS  Google Scholar 

  10. Dorman, L.I., Cosmic Rays in Magnetospheres of the Earth and Other Planets, Dordrecht: Springer, 2010.

    Google Scholar 

Download references

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Authors and Affiliations

  1. Pushkov Institute of Terrestrial Magnetism, the Ionosphere, and Radio Wave Propagation (IZMIRAN), Russian Academy of Sciences, Troitsk, Moscow oblast, 142190, Russia

    A. V. Belov, A. A. Abunin, M. A. Abunina, E. A. Eroshenko, V. A. Oleneva & V. G. Yanke

Authors
  1. A. V. Belov
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  2. A. A. Abunin
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  3. M. A. Abunina
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  4. E. A. Eroshenko
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  5. V. A. Oleneva
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  6. V. G. Yanke
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Corresponding author

Correspondence to E. A. Eroshenko.

Additional information

Original Russian Text © A.V. Belov, A.A. Abunin, M.A. Abunina, E.A. Eroshenko, V.A. Oleneva, V.G. Yanke, 2015, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2015, Vol. 79, No. 5, pp. 691–693.

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Belov, A.V., Abunin, A.A., Abunina, M.A. et al. Modeling variations in CR density in magnetic clouds. Bull. Russ. Acad. Sci. Phys. 79, 637–639 (2015). https://doi.org/10.3103/S1062873815050159

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  • DOI: https://doi.org/10.3103/S1062873815050159

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