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Study of temporal changes of Forbush decrease amplitude spectra for different types of heliospheric disturbances

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

Abstract

Experimentally obtained temporal changes of the index of the Forbush decreases amplitude spectrum, caused by heliospheric disturbances of different types at different phases of 23rd and 24th solar cycles and recorded by the URAGAN muon hodoscope, are studied. Coupling functions of the primary and the secondary cosmic ray fluxes for five zenith-angular intervals are used to obtain the energy spectrum of Forbush decrease amplitudes in a flux of muons. Analysis of the energy characteristics is based on the dependence of the amplitude of the decrease in the intensity of cosmic ray muons on the mean log energy of the primary particles that contribute to changes in the count rate of the URAGAN muon hodoscope during Forbush decreases.

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Authors and Affiliations

  1. National Research Nuclear University (MEPhI), Moscow, 115409, Russia

    E. I. Yakovleva, I. I. Astapov, N. S. Barbashina, A. N. Dmitrieva, A. A. Kovylyaeva, Yu. N. Mishutina, A. A. Petrukhin, O. A. Sit’ko, V. V. Shutenko & I. I. Yashin

Authors
  1. E. I. Yakovleva
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  2. I. I. Astapov
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  3. N. S. Barbashina
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  4. A. N. Dmitrieva
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  5. A. A. Kovylyaeva
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  6. Yu. N. Mishutina
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  7. A. A. Petrukhin
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  8. O. A. Sit’ko
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  9. V. V. Shutenko
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  10. I. I. Yashin
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Corresponding author

Correspondence to E. I. Yakovleva.

Additional information

Original Russian Text © E.I. Yakovleva, I.I. Astapov, N.S. Barbashina, A.N. Dmitrieva, A.A. Kovylyaeva, Yu.N. Mishutina, A.A. Petrukhin, O.A. Sit’ko, V.V. Shutenko, I.I. Yashin, 2015, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2015, Vol. 79, No. 5, pp. 685–687.

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Yakovleva, E.I., Astapov, I.I., Barbashina, N.S. et al. Study of temporal changes of Forbush decrease amplitude spectra for different types of heliospheric disturbances. Bull. Russ. Acad. Sci. Phys. 79, 631–633 (2015). https://doi.org/10.3103/S1062873815050433

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  • DOI: https://doi.org/10.3103/S1062873815050433

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