Abstract
Coupled variations of the magnetic field and plasma density with periods greater than 2 minutes (about 10-30 minutes) at low geomagnetic latitudes, namely compressional Pc5 waves have been studied in a number of papers (for example, see [1] – [6] and references therein). The main features of the above ULF events observed at the flanks are coincidence of the mean period of quasi-sinusoidal signal with the range of Pc 3–5; anti-phase correlation of ion plasma pressure and magnetic field pressure; relatively high values of plasma beta; comparable oscillations in compressional and transverse components of the magnetic field; association with the geomagnetic storm activity.
Published Version
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