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Spatio-temporal evolution of thin Alfven resonance layer

Published online by Cambridge University Press:  07 May 2010

I. S. DMITRIENKO
I. S. DMITRIENKO*
Affiliation:
Institute of Solar-Terrestrial Physics SB RAS, P/O Box 291, Irkutsk 664033, Russia ([email protected])
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Abstract

We describe the spatio-temporal evolution of one-dimensional Alfven resonance disturbance in the presence of various factors of resonance detuning: dispersion and absorption of Alfven disturbance, nonstationarity of large-scale wave generating resonant disturbance. Using analytical solutions to the resonance equation, we determine conditions for forming qualitatively different spatial and temporal structures of resonant Alfven disturbances. We also present analytical descriptions of quasi-stationary and non-stationary spatial structures formed in the resonant layer, and their evolution over time for cases of drivers of different types corresponding to large-scale waves localized in the direction of inhomogeneity and to nonlocalized large-scale waves.

Type
Papers
Information
Journal of Plasma Physics , Volume 76 , Issue 5 , October 2010 , pp. 709 - 734
Copyright
Copyright © Cambridge University Press 2010

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