Dynamics of solar protons in the Earth's magnetosphere during magnetic storms in November 2004-January 2005статья

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[1] Dynamics of solar protons in the earth's magnetosphere during magnetic storms in november 2004-january 2005 / L. L. Lazutin, Y. V. Gotselyuk, E. A. Murav'eva et al. // Geomagnetism and Aeronomy. — 2010. — Vol. 50, no. 2. — P. 168–180. The processes of penetration, trapping, and acceleration of solar protons in the Earth's magneto-sphere during magnetic storms in November 2004 and January 2005 are studied based on the energetic particle measurements on the CORONAS-F and SERVIS-1 satellites. Acceleration of protons by 1-2 orders of magnitude was observed after trapping of solar protons with an energy of 1-15 MeV during the recovery phase of the magnetic storm of November 7-8, 2004. This acceleration was accompanied by an earthward shift of the particle flux maximum for several days, during which the series of magnetic storms continued. The process of relativistic electron acceleration proceeded simultaneously and according to a similar scenario including acceleration of protons. At the end of this period, the intensification was terminated by the process of precipitation, and a new proton belt split with the formation of two maximums at L similar to 2 and 3. In the January 2005 series of moderate storms, solar protons were trapped at L = 3.7 during the storm of January 17-18. However, during the magnetic storm of January 21, these particles fell in the zone of quasi-trapping, or precipitated into the atmosphere, or died in the magnetosheath. At the same time, the belts that were formed in November at L similar to 2 and 3 remained unchanged. Transformations of the proton (and electron) belts during strong magnetic storms change the intensity and structure of belts for a long time. Thus, the consequences of changes during the July 2004 storm did not disappear until November disturbances. [ DOI ]

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