Amplification of compressional magnetohydrodynamic waves in systems with forced entropy oscillations

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Amplification of compressional MHD waves in systems with forced entropy oscillations

The propagation of compressional MHD waves is studied for an externally driven system. It is assumed that the combined action of the external sources and sinks of the entropy results in the harmonic oscillation of the entropy (and temperature) in the system. It is found that with the appropriate resonant conditions fast and slow waves get amplified due to the phenomenon of parametric resonance....

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ژورنال

عنوان ژورنال: Physical Review E

سال: 2007

ISSN: 1539-3755,1550-2376

DOI: 10.1103/physreve.76.046404