Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ge%26ae..51.1165k&link_type=abstract
Geomagnetism and Aeronomy, Volume 51, Issue 8, pp.1165-1173
Physics
Scientific paper
The process of resonant transformation of fast magnetosonic (FMS) waves originating from the solar wind in Alfvén and slow magnetosonic (SMS) oscillations in the Earth's magnetosphere is investigated. The study of this process in a one-dimensional inhomogeneous medium model shows that the presence of a resonant surface for SMS oscillations in the plasma configuration significantly increases the absorption of the energy of FMS waves incident on the magnetosphere. The spatial distribution of the absorption rate of an energy flux of FMS waves is examined. In numerical calculations, the Kolmogorov spectrum was used for FMS waves, which is typical of the waves in the transition layer between a shock wave and the magnetopause. It is shown that the rate of energy absorption of FMS waves due to the resonant excitation of SMS oscillations is by several orders of magnitude greater than the absorption of their energy associated with resonant Alfvén waves at the same magnetic shells.
Kozlov D. A.
Leonovich Anatoly S.
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