SELF-CONSISTENT CHARGE DYNAMICS IN MAGNETIZED DUSTY PLASMAS - LOW-FREQUENCY ELECTROSTATIC MODES

Charges on the dust grains immersed in a plasma vary in time. We consi dered such a variation in the case of a magnetoplasma. We follow the h ydrodynamic approach to obtain dispersion relations for some low-frequ ency electrostatic modes that exist in magnetized dusty plasmas, takin g into account charge fluctuation on the dust. Using self-consistent c harge dynamics we obtain dielectric permittivity tensor for magnetized dusty plasmas. We use this permittivity to investigate the low-freque ncy electrostatic modes in magnetized dusty plasmas. Our analysis show s that the presence of the dust grains in magnetoplasma causes differe nt effects in different frequency regimes.