Plasma Maser Theory of Whistler Waves in the Presence of Ion Cyclotron Turbulence

1986 ◽  
Vol 26 (2) ◽  
pp. 105-110
Author(s):  
R. N. Khound ◽  
S. N. Sarma ◽  
S. Bujarbarua
Keyword(s):  
2012 ◽  
Vol 86 (6) ◽  
pp. 489-492
Author(s):  
S. N. Paul ◽  
S. K. Bhattacharya ◽  
B. Paul ◽  
B. Ghosh

2003 ◽  
Vol 55 (4) ◽  
pp. 203-213
Author(s):  
Ashok K. Singh ◽  
Rajesh Singh ◽  
R. P. Singh

1974 ◽  
Vol 12 (3) ◽  
pp. 417-432 ◽  
Author(s):  
Lawrence R. Lyons

General relations for quasi-linear diffusion coefficients in pitch angle and energy are applied to resonant particle interactions with ion–cyclotron and whistler waves. Expressions for the diffusion coefficients, valid for any distribution of wave energy with frequency and wave normal angle, are derived and normalized to be independent of the ambient magnetic field intensity and the electron density. The results illustrate how resonant particle diffusion rates vary with pitch angle and energy, and how the diffusion rates depend upon the distribution of wave energy.


2019 ◽  
Vol 883 (2) ◽  
pp. 185 ◽  
Author(s):  
Jinsong Zhao ◽  
Tieyan Wang ◽  
Chen Shi ◽  
Daniel B. Graham ◽  
Malcolm W. Dunlop ◽  
...  

2012 ◽  
Vol 30 (1) ◽  
pp. 97-107 ◽  
Author(s):  
S. Y. Huang ◽  
M. Zhou ◽  
X. H. Deng ◽  
Z. G. Yuan ◽  
Y. Pang ◽  
...  

Abstract. Multiple dipolarization fronts (DFs) were observed by Cluster spacecraft in the magnetotail during a substorm. These DFs were kinetic structures, embedded in the bursty plasma flow, and moved earthward (mainly) and dawnward. Intense electric field, parallel and perpendicular currents were detected in the DF layer. These front layers were energy dissipation region (load region) where the energy of electromagnetic fields were transferred to the plasma thermal and kinetic energy. This dissipation was dominated by electrons. There were enhancements of plasma waves around the DF region: wavelet results show that wave activities around the ion cyclotron frequency in the front layer were generated by Alfvén ion cyclotron instability; whistler waves were also detected before, during and after the DFs, which are triggered by electron temperature anisotropy and coincident with enhancement of energetic electron fluxes. The observation of these waves could be important for the understanding of evolution of DF and electron energization during the substorm. We discuss the generation mechanism of the DFs and suggest that these DFs were generated in the process of transient reconnection, and then traveled toward the Earth.


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