Theory of low-scale mhd waves in the near equatorial region of the earth plasmasphere
Рубрика:
| 1Burdo, OS, 1Cheremnykh, OK, 2Verkhoglyadova, OP 1Space Research Institute of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Kyiv, Ukraine 2Taras Shevchenko National University of Kyiv, Kyiv, Ukraine |
| Kosm. nauka tehnol. 2001, 7 ;(Supplement2):074-083 |
| https://doi.org/10.15407/knit2001.02s.074 |
| Язык публикации: English |
Аннотация: Study of low-scale MHD waves in the inner Earth magnetosphere was performed using the standard set of ballooning mode equations obtained naturally for finite pressure plasmas in general magnetic field geometries. Flute- and ballooning-type low-scale disturbances in the near equatorial plasma-sphere where they may have maximum growth rates were studied. The ballooning mode stability condition was obtained, the wave excitation spectrum was investigated. Corresponding dispersion equations for low-frequency wave modes were formulated and analysed. Dependencies of eigenfre-quencies and growth rates on plasma pressure and Mcllwain parameter were discussed.
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