Computer Science
Scientific paper
May 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cosre..42..219g&link_type=abstract
Cosmic Research, v. 42, Issue 3, p. 219-227 (2004).
Computer Science
Scientific paper
In this paper we consider a large-scale enhancement of the intensity of solar protons (E = 1-20 MeV) observed in June 1991 for 26 days at different points of interplanetary space, onboard ULYSSES (in the time period under consideration it was located at a heliocentric distance of 3 AU, at an angular distance of ~70° to the East of the Sun-Earth line and 3° to the South of the ecliptic plane) and GRANAT (which was orbiting around the Earth spending most of its flight time outside the Earth's magnetosphere). An approximation is made of the complex time profile of the enhancement of the solar cosmic ray (SCR) intensity on the basis of the reflection model of their propagation in the heliosphere. It has been established that, in this event, the transport of SCR particles in the interplanetary space was mainly carried out in the traps made up by the fronts of radially moving flare disturbances. The parameters of these fronts obtained when modeling this enhancement of SCR allow one to estimate the characteristic dimensions of the regions of effective capture of SCR. Comparison of the results of approximations obtained for the data from GRANAT and ULYSSES spacecraft demonstrated an increase in the regions of capture of SCR when the radial distance from the Sun increases.
Grigorenko Elena E.
Lyubimov G. P.
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