Trajectories of charged dust grains in the cometary environment

1985 ◽  
Vol 294 ◽  
pp. 357 ◽  
Author(s):  
M. Horanyi ◽  
D. A. Mendis
Keyword(s):  
Charged Dust ◽  
Dust Grains

Inward and outward dust acoustic cylindrical and spherical waves interaction in four-component dusty plasma with nonthermal ions

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Uday Narayan Ghosh ◽  
Prasanta Chatterjee ◽  
Barjinder Kaur
Keyword(s):  
Dusty Plasma ◽  
Charged Dust ◽  
Dust Grains ◽  
Mass Ratio ◽  
Temperature Ratio ◽  
Spherical Waves ◽  
Dust Acoustic ◽  
Waves Interaction ◽  
Positively Charged ◽  
Different Time Scales

Abstract A theoretical investigation by an all-inclusive adaptation of the PLK strategy is carried out in order to study the inward and outward interaction between two cylindrical and spherical dust acoustic solitary waves (DASWs) in an unmagnetized dusty plasma consisting of nonthermal distributed ions, negatively and positively charged dust grains along with electrons featuring Boltzmann’s distribution. The interactions and collisions between two cylindrical and spherical geometries at different time scales are studied. Also the combined effects of the nonthermality of ions, ion to electron temperature ratio as well as mass ratio of positive to negative dust grains have been studied in detail on the phase shifts raised due to collision. It has been seen that the properties of the cooperation of DASWs in cylindrical and spherical shaped are distinct.

Non-Thermal and Dust Charge Effects on Surface Ion Waves in Semi-Bound Lorentzian Plasmas

2006 ◽  
Vol 61 (7-8) ◽  
pp. 323-329 ◽  
Author(s):  
Jae-Hoon Song ◽  
Young-Dae Jung
Keyword(s):  
Surface Wave ◽  
Phase Velocity ◽  
Spectral Index ◽  
Charged Dust ◽  
Dust Grains ◽  
Charge Effects ◽  
Long Wavelength ◽  
Dust Charge ◽  
Ion Waves ◽  
Positively Charged

The non-thermal and dust charge effects on a surface electrostatic ion plasma wave are investigated in a semi-bound magnetized dusty Lorentzian plasma. The results show that the phase velocity of the surface wave with negatively charged dust grains is greater than that with positively charged dust grains or that with neutral dust grains. It is also found that the phase velocity increases with increasing the spectral index of the plasma. For the long wavelength domain, however, the phase velocity of the surface wave is found to be almost independent of the spectral index.

Coulomb Interactions between Cosmic Rays and Charged Dust Grains

1993 ◽  
Vol 10 (3) ◽  
pp. 218-221 ◽  
Author(s):  
S.E. Byleveld ◽  
D.B. Melrose ◽  
LE. Cram
Keyword(s):  
Cosmic Rays ◽  
High Energy ◽  
Heating Time ◽  
Low Energy ◽  
High Energy Density ◽  
Charged Dust ◽  
Dust Grains ◽  
Coulomb Interactions ◽  
Time Required ◽  
Favorable Conditions

AbstractThe transfer of kinetic energy between cosmic rays and charged dust grains is investigated. The time required for heating of the dust grains due to Coulomb interactions is estimated and compared with the heating time due to ionisation losses by the cosmic rays. Heating of dust grains by cosmic rays is examined in connection with the FIR–radio correlation in galaxies: even for the most favorable conditions, including a high energy density in low-energy, ≲ 100 keV, cosmic rays, the conclusions are equivocal.

Disruption of Charged Dust Grains in Cometary Plasma Environments

1998 ◽  
Vol 15 (2) ◽  
pp. 155-156 ◽  
Author(s):  
Zhi-dong Shi ◽  
Zhong-yuan Li ◽  
Yao Chen
Keyword(s):  
Charged Dust ◽  
Dust Grains ◽  
Cometary Plasma
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