Charging of a dust particle in a plasma with a non extensive electron distribution function

Abstract

We present a theoretical model for the electrostatic charging of a spherical dust particle in an electron-ion plasma with streaming ions and a nonextensive electron distribution function following a non-Maxwell-Boltzmann law. The non-extensive electron distribution function drastically affects the electron current to dust grain surface and, therefore, the electron charge on a dust particle is significantly reduced in a non-Maxwellian dusty plasma.