Hybrid Models of Ion-acoustic Shock Waves Formation on Collisionless Plasma

Electrostatic shock waves are observed both in cosmic plasma and in laboratory experiments on plasma heating and confinement, laser methods for accelerating charged particles, and generating high-frequency radiation. In this work, numerical simulation of the generation of ion-acoustic collisionless shock waves in multicomponent plasma as a result of the decay of the density discontinuity and localized density perturbation using the PIC-method was carried out. Two analytical approaches for the electron density distribution are compared with the kinetic simulation with the real ion-to-electron mass ratio.