Multiple‐gap theory of toroidal Alfvén waves with kinetic effects

1993 ◽  
Vol 5 (4) ◽  
pp. 1257-1262 ◽  
Author(s):  
X. D. Zhang ◽  
Y. Z. Zhang ◽  
S. M. Mahajan
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Kinetic Effects

scholarly journals Ion acceleration by parallel propagating nonlinear Alfvén wave packets in a radially expanding plasma

2014 ◽  
Vol 21 (1) ◽  
pp. 339-346 ◽  
Author(s):  
Y. Nariyuki ◽  
T. Umeda ◽  
T. K. Suzuki ◽  
T. Hada
Keyword(s):  
Nonlinear Evolution ◽  
Interplanetary Space ◽  
Fluid Model ◽  
Wave Packets ◽  
Velocity Distribution Function ◽  
Alfven Waves ◽  
Alfven Wave ◽  
Alfvén Waves ◽  
Radial Evolution ◽  
Kinetic Effects

Abstract. The numerical simulation of the nonlinear evolution of the parallel propagating Alfvén waves in a radially expanding plasma is performed by using a kinetic-fluid model (the Vlasov–MHD model). In our study, both the nonlinear evolution of the Alfvén waves and the radial evolution of the velocity distribution function (VDF) are treated simultaneously. On the other hand, important ion kinetic effects such as ion cyclotron damping and instabilities driven by the non-equilibrium ion velocity distributions are not included in the present model. The results indicate that the steepened Alfvén wave packets outwardly accelerate ions, which can be observed as the beam components in the interplanetary space. The energy of imposed Alfvén waves is converted into the longitudinal fluctuations by the nonlinear steepening and the nonlinear Landau damping. The wave shoaling due to the inhomogeneity of the phase velocity is also observed.

scholarly journals Multiple-gap theory of toroidal Alfven waves with kinetic effects

1992 ◽  
Author(s):  
X.D. Zhang ◽  
Y.Z. Zhang ◽  
S.M. Mahajan
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Kinetic Effects

scholarly journals Kinetic effects in the acceleration of auroral electrons in small scale Alfven waves: A FAST case study

2003 ◽  
Vol 30 (6) ◽  
Author(s):  
C. C. Chaston ◽  
J. W. Bonnell ◽  
C. W. Carlson ◽  
J. P. McFadden ◽  
R. J. Strangeway ◽  
...  
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Small Scale ◽  
Auroral Electrons ◽  
Kinetic Effects

Alfven waves in space plasmas: dispersive and kinetic effects

2001 ◽  
Vol 7 (2s) ◽  
pp. 67-73
Author(s):  
Yu. Voitenko ◽  
◽  
M. Goossens ◽  
A.K. Yukhimuk ◽  
A.D. Voitsekhovska ◽  
...  
Keyword(s):  
Alfven Waves ◽  
Space Plasmas ◽  
Alfvén Waves ◽  
Kinetic Effects
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