Generation of long-period regular pulsations in the magnetosphere during SC

Details Generation of long-period regular pulsations in the magnetosphere during SC Generation of long-period regular pulsations in the magnetosphere during SC

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ge%26ae..46..438r&link_type=abstract

Geomagnetism and Aeronomy, Volume 46, Issue 4, pp.438-449

Mathematics

Logic

4

94.30.Ms, Magnetic Pulsations

Scientific paper

Pulsations in the electron fluxes and magnetic field on two geosynchronous satellites and at several ground-based observatories have been studied. Relativistic electron flux pulsations with a period of 6 min originated after the shock arrival from the solar wind at 0258 UT on February 11, 2000, had a regular character, and propagated from the dayside to the nightside at a velocity of about 60 deg min-1. Magnetic field oscillations on the satellites and on the Earth had a more complicated structure. Field oscillations morphologically similar to electron oscillations are observed only on one satellite in one component and at one-two ground-based stations, where a periodicity of 10-12 min was mainly observed. It is assumed that magnetic pulsations are Alfvén resonances generated by a fast magnetosonic wave.

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