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- Title
COSMIC RAY FLUXES IN THE MAXIMUM PHASE OF SOLAR ACTIVITY CYCLES.
- Authors
Bazilevskaya, G. A.; Makhmutov, V. S.; Stozhkov, Y. I.; Svirzhevskaya, A. K.; Svirzhevsky, N. S.
- Abstract
The homogeneous series of primary cosmic ray intensity with energy > 100 MeV is obtained in the long-term balloon measurements of charged particle fluxes performed by Lebedev Physical Institute. Supplementing these data with those of neutron monitors enables us to study the cosmic ray modulation on the wide energy base during more than four solar activity cycles. In the periods of solar activity maximum a transition from cosmic ray decrease to recovery occurs. Changes in fluxes of cosmic rays of lower energy lag behind the changes in fluxes of cosmic rays of higher energy producing an energy hysteresis. After a while cosmic ray fluxes of all energies start to recover. In the cycles 20 and 22 the periods of transition from decline to recovery were shorter than in the cycles 21 and 23. This may be indicative of more complicated passage from the cosmic ray drift in the A > 0 conditions to the drift in the A < 0 conditions than vice versa.
- Subjects
COSMIC rays; ASTROPHYSICAL radiation; SOLAR activity; SOLAR cycle; IONIZING radiation; SOLAR radiation
- Publication
International Journal of Modern Physics A: Particles & Fields; Gravitation; Cosmology; Nuclear Physics, 2005, Vol 20, Issue 29, p6669
- ISSN
0217-751X
- Publication type
Article
- DOI
10.1142/S0217751X05029757