The effect of dust charge-gradient and dust polarization forces on the Jeans instability in a collisional magnetized dusty plasma

2021 ◽  
Author(s):  
Prerana Sharma ◽  
Shweta Jain ◽  
Linda Xavier
Keyword(s):  
Dusty Plasma ◽  
Dust Charge ◽  
Magnetized Dusty Plasma ◽  
Jeans Instability

Effect of dust charge fluctuations on upper hybrid wave instabilities in magnetized dusty plasma

2014 ◽  
Vol 32 ◽  
pp. 1460350 ◽  
Author(s):  
Jyotsna Sharma ◽  
Ajay Gahlot ◽  
Suresh C. Sharma ◽  
V. K. Jain
Keyword(s):  
Growth Rate ◽  
Dusty Plasma ◽  
Unstable Wave ◽  
Lower Hybrid ◽  
Hybrid Wave ◽  
Charge Fluctuations ◽  
Electrostatic Wave ◽  
Dust Charge ◽  
Magnetized Dusty Plasma ◽  
Dust Charge Fluctuations

The decay instability of an upper hybrid electrostatic wave into an upper hybrid sideband wave and lower hybrid wave is studied in magnetized dusty plasma. A local theory of this process has been developed. The growth rate and mode frequencies of the unstable wave were evaluated based on existing dusty plasma parameters and it is found that the unstable mode frequency and growth rate increases with δ (ion-to-electron density ratio) in the presence and absence of dust charge fluctuations in addition to dust dynamics.

Jeans instability of a dusty plasma with dust charge variations

2015 ◽  
Vol 22 (9) ◽  
pp. 093707 ◽  
Author(s):  
H. Hakimi Pajouh ◽  
N. Afshari
Keyword(s):  
Dusty Plasma ◽  
Dust Charge ◽  
Jeans Instability
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