scholarly journals Observations and analysis of Alfvén wave phase mixing in the Earth's magnetosphere

2009 ◽  
Vol 114 (A3) ◽  
pp. n/a-n/a ◽  
Author(s):  
T. E. Sarris ◽  
A. N. Wright ◽  
X. Li
Keyword(s):  
Alfven Wave ◽  
Phase Mixing ◽  
Earth’S Magnetosphere ◽  
Wave Phase ◽  
Earth's Magnetosphere

scholarly journals Alfvén wave phase-mixing in flows

2016 ◽  
Vol 586 ◽  
pp. A95 ◽  
Author(s):  
D. Tsiklauri
Keyword(s):  
Alfven Wave ◽  
Phase Mixing ◽  
Wave Phase

Numerical simulations to study whistler turbulence by kinetic Alfvén wave

2011 ◽  
Vol 77 (6) ◽  
pp. 715-724 ◽  
Author(s):  
R. P. SHARMA ◽  
K. BATRA ◽  
N. K. DWIVEDI
Keyword(s):  
Energy Exchange ◽  
Alfven Wave ◽  
Kinetic Alfvén Wave ◽  
Earth’S Magnetosphere ◽  
Localized Structures ◽  
Envelope Solitons ◽  
Kinetic Alfven Wave ◽  
Earth's Magnetosphere ◽  
Perturbation Energy ◽  
Model Equations

AbstractThis work presents the model equations governing the excitation of weak whistler by a stronger Kinetic Alfvén wave (KAW) in the plasma having β value (β ≫ me/mi, where beta is the ratio of the ion sound speed to the Alfvén speed), applicable to magnetotail in Earth's magnetosphere, when the ponderomotive nonlinearity is incorporated in the KAW dynamics. Numerical solution of the model equations has been obtained when the incident pump KAW is having a small perturbation. Energy exchange between main KAW and perturbation and the resulting localized structures of the KAW have been studied. A weak whistler signal propagating in these localized structures is amplified and leads to the development of envelope solitons. Our result reveals that the amplified (excited) whistler has an electric field power spectrum that is steeper than k−8/3. This result is consistent with recent observations by the Cluster spacecraft Eastwood et al. (Phys. Rev. Lett., vol. 102, 2009, 035001) in the magnetotail region of the Earth's magnetosphere.

Alfvén wave phase mixing driven by velocity shear in two-dimensional open magnetic configurations

1999 ◽  
Vol 104 (A8) ◽  
pp. 17057-17068 ◽  
Author(s):  
M. S. Ruderman ◽  
M. L. Goldstein ◽  
D. A. Roberts ◽  
A. Deane ◽  
L. Ofman
Keyword(s):  
Velocity Shear ◽  
Alfven Wave ◽  
Two Dimensional ◽  
Phase Mixing ◽  
Wave Phase

Plasma Heating by Alfvén-Wave Phase Mixing

1974 ◽  
Vol 32 (9) ◽  
pp. 454-456 ◽  
Author(s):  
Akira Hasegawa ◽  
Liu Chen
Keyword(s):  
Plasma Heating ◽  
Alfven Wave ◽  
Phase Mixing ◽  
Wave Phase
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