Mathematics
Scientific paper
Sep 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974izssr..38.1946d&link_type=abstract
(Vsesoiuznaia Konferentsiia po Fizike Kosmicheskikh Luchei, Kharkov, Ukrainian SSR, Sept. 25-28, 1973.) Akademiia Nauk SSSR, Izv
Mathematics
Cosmic Rays, Galactic Radiation, Secular Variations, Solar Activity Effects, Solar Cycles, Spectrum Analysis, Atmospheric Scattering, Interplanetary Magnetic Fields, Mathematical Models, Modulation, Particle Diffusion, Solar Wind, Spectrographs, Stratosphere Radiation
Scientific paper
Results of a study of the nature of the spectrum of the 11-year cosmic-ray variation on the basis of stratospheric measurements and neutron-component data covering most of a decade. It is found that the relative modulation spectrum for particles with R greater than 2 GV is described by an exponential function with two parameters (B and gamma), while in the range R less than 2 GV a decrease in the modulation amplitude is observed. To understand the reason for this behavior of the modulation spectrum, a study is made of the transport path for cosmic-ray scattering. It is found that this path is minimal for particles with a rigidity of 1.5 to 2 GV, it increases in the ranges R greater than 2 GV and R less than 2 GV, and in the range from 0.6 to 20 GV varies with a variation in the solar activity level. To establish the relation between these patterns and the characteristics of the interplanetary magnetic field, theoretical estimates of scattering path lengths obtained for certain models are presented.
Dorman Irina V.
Dorman Lev I.
Dvornikov V. M.
Sergeev Aleksandre V.
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