Effect of Energetic Electrons on Dynamic Motion of Ion-AcousticWaves in Presence of External Periodic Force

The dynamic motions of ion–acoustic (IA) waves in a plasma is studied by considering theKappa-Cairns electron distribution. The effect of external periodic force is also considered,here. Using the reductive perturbation technique, a Korteweg-de Vries (K-dV) equation isobtained. The quasiperiodic motions of IA waves are investigated by considering twodimensionalphase portraits and time-series analysis. The effects of non–thermal parameters(i.e., 𝜅, 𝛼) and the strength (𝑓۰) of the external periodic force on nonlinear traveling wavestructures are also discussed.

کلیدواژه ها:

Ion-acoustic waves ، dynamic motions ، externalperiodic force ، energeticelectrons.