Low-frequency electrostatic dust-modes in a non-uniform magnetized dusty plasma

Abstract

A self-consistent and general description of obliquely propagating low frequency electrostatic dust-modes in a inhomogeneous, magnetized dusty plasma system has been presented. A number of different situations, which correspond to different low-frequency electrostatic dust-modes, namely, dust-acoustic mode, dust-drift mode, dust-cyclotron mode, dust-lower-hybrid mode, and other associated modes (such as, accelerated and retarded dust-acoustic modes, accelerated and retarded dust-lower-hybrid modes, etc.), have also been investigated. It has been shown that the effects of obliqueness and inhomogeneities in plasma particle number densities introduce new electrostatic dust modes as well as significantly modify the dispersion properties of the other low-frequency electrostatic dust-modes. The implications of these results to some space and astrophysical dusty plasma systems, especially to planetary ring-systems and cometary tails, are briefly mentioned.

Effect of polarization force on low-frequency dust modes with quantum correction

“…Low-frequency modes in strongly coupled magnetized dusty plasmas have been studied by Xie and Chen [5]. Duha et al [6] have investigated low-frequency electrostatic dust modes in non-uniform magnetized dusty plasma. Melands [7] has studied the lattice waves in dust plasma crystals.…”