Electron acoustic soliton energy of the Kadomtsev-Petviashvili equation in the Earth’s magnetotail region at critical ion density

摘要: The nonlinear properties of small amplitude electron-acoustic solitary waves (EAWs) in a homogeneous system unmagnetized collisionless plasma consisted cold electron fluid and isothermal ions with two different temperatures obeying Boltzmann type distributions have been investigated. A reductive perturbation method was employed to obtain the Kadomstev-Petviashvili (KP) equation. At critical ion density, KP equation is not appropriate for describing system. Hence, new set stretched coordinates considered derive modified Moreover, solution, soliton energy associated electric field at density were computed. present investigation can be relevance electrostatic structures observed various space environments, such as Earth’s magnetotail region.