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

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 th...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2015-05, Vol.79 (5), p.631-633
Main Authors: Yakovleva, E. I., Astapov, I. I., Barbashina, N. S., Dmitrieva, A. N., Kovylyaeva, A. A., Mishutina, Yu. N., Petrukhin, A. A., Sit’ko, O. A., Shutenko, V. V., Yashin, I. I.
Format: Article
Language:English
Subjects:
Cosmic rays
Disturbances
Fluxes
Forbush decreases
Hadrons
Heavy Ions
Muons
Nuclear Physics
Physics
Physics and Astronomy
Proceedings of the 33rd National Conference on Cosmic Rays
Solar cycle
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Summary: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.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873815050433