EXTERNAL CHARGED DEBRIS INDUCED NON-LINEAR STRUCTURES IN A FLOWING PLASMA

Abstract

In this work, we investigate the nonlinear structures triggered by periodically fluctuating external charged debris in a flowing plasma. Using the forced Korteweg-de Vries (fKdV) model together with Particle-in-Cell (PIC) simulations, we demonstrate that the periodic fluctuation suppresses the pinned solitons excited by the negatively charged debris whereas the dispersive shock waves (DSWs) excited by the positively charged debris are least affected. These findings highlight the role of debris charge fluctuation in plasma dynamics and its implications for debris-induced phenomena in the low Earth orbit (LEO) plasma.