Effect of kappa distribution function on kinetic Alfven waves instability in dusty magneto-plasma

2019 ◽  
Author(s):  
Amar Singh Patneshwar ◽  
G. Ahirwar
Keyword(s):  
Distribution Function ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Kappa Distribution ◽  
Kappa Distribution Function ◽  
Kinetic Alfvén Waves

Effect of the general loss-cone distribution function on kinetic Alfvén waves—a kinetic approach

2007 ◽  
Vol 73 (6) ◽  
pp. 911-920 ◽  
Author(s):  
NIDHI SHUKLA ◽  
P. VARMA ◽  
M.S. TIWARI
Keyword(s):  
Growth Rate ◽  
Distribution Function ◽  
Alfven Waves ◽  
Wave Frequency ◽  
Kinetic Approach ◽  
Wave Number ◽  
Alfvén Waves ◽  
Ion Temperature ◽  
Loss Cone ◽  
Kinetic Alfvén Waves

AbstractKinetic Alfvén waves are investigated in the presence of a general loss-cone distribution function including finite electron pressure and ion-gyroradius effects. The dispersion relation and damping/growth rate are evaluated for different electron to ion temperature ratios, Te/Ti, using a kinetic approach. The wave frequency ω and damping/growth rate γL are evaluated for two regimes of propagation, k⊥ρi < 1 and k⊥ρi > 1, where k⊥ is the perpendicular wave number and ρi is the ion-gyroradius. An enhancement of the wave frequency and a reduction in the damping rate are predicted by steep loss-cone distribution indices and Te/Ti. The growth of the wave is also noticed at higher values of the distribution index and lower Te/Ti. Plasma parameters appropriate to the plasma sheet boundary layer (PSBL) are used to discuss the propagation of kinetic Alfvén waves from the PSBL to the auroral ionosphere.

Kinetic Alfvén Waves Excited in Two-Dimensional Magnetic Reconnection

2018 ◽  
Vol 123 (8) ◽  
pp. 6655-6669 ◽  
Author(s):  
Hongtao Huang ◽  
Yiqun Yu ◽  
Lei Dai ◽  
Tieyan Wang
Keyword(s):  
Magnetic Reconnection ◽  
Alfven Waves ◽  
Alfvén Waves ◽  
Two Dimensional ◽  
Kinetic Alfvén Waves

Kinetic Alfven Waves in the Global Coupling Associated with Fast Flows

2021 ◽  
Author(s):  
Yu Lin ◽  
Lei Cheng ◽  
Xueyi Wang ◽  
Jay Johnson ◽  
J. D. Perez ◽  
...  
Keyword(s):  
Alfven Waves ◽  
Alfvén Waves ◽  
Global Coupling ◽  
Kinetic Alfvén Waves
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