## Abstract

The nonlinear properties of small amplitude electron-acoustic solitary waves (EAWs) in a homogeneous system of unmagnetized collisionless plasma consisted of a 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 the critical ion density, the KP equation is not appropriate for describing the system. Hence, a new set of stretched coordinates

is considered to derive the modified KP equation. Moreover, the solitary solution, soliton energy and the associated electric field at the critical ion density were computed. The present investigation can be of relevance to the electrostatic solitary structures observed in various space plasma environments, such as Earth’s magnetotail region.

is considered to derive the modified KP equation. Moreover, the solitary solution, soliton energy and the associated electric field at the critical ion density were computed. The present investigation can be of relevance to the electrostatic solitary structures observed in various space plasma environments, such as Earth’s magnetotail region.

Original language | English |
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Pages (from-to) | 197-203 |

Journal | Astrophysics and Space Science |

Volume | 349 |

Issue number | 1 |

Early online date | 11 Oct 2013 |

DOIs | |

Publication status | Published - Jan 2014 |

## Keywords

- Electron-acoustic solitary waves · Reductive perturbation · Kadomstev-Petviashvili (KP) equation

## ASJC Scopus subject areas

- Physics and Astronomy(all)