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2658364 
Journal Article 
Solar wind driven dust acoustic instability with Lorentzian kappa distribution 
Arshad, K; Ehsan, Z; Khan, SA; Mahmood, S 
2014 
1 
Physics of Plasmas
ISSN: 1070-664X
EISSN: 1089-7674 
21 
2 
WOS:000332323400102 
In a three species electron-ion-dust plasma following a generalized non-Maxwellian distribution function (Lorentzian or kappa), it is shown that a kinetic instability of dust-acoustic mode exists. The instability threshold is affected when such (quasineutral) plasma permeates through another static plasma. Such case is of interest when the solar wind is streaming through the cometary plasma in the presence of interstellar dust. In the limits of phase velocity of the waves larger and smaller than the thermal velocity of dust particles, the dispersion properties and growth rate of dust-acoustic mode are investigated analytically with validation via numerical analysis. (C) 2014 AIP Publishing LLC.