Solitons in a Warm Unmagnetized Plasma with Electron Inertia and Negative Ions

抄録

Ion-acoustic soliton in a warm plasma with positive and negative ions of equal temperatures is studied under the influence of electron inertia. Depending upon Q (=m_j/m_i, negative ion to positive ion mass ratio) and various ion temperatures, compressive fast ion-acoustic solitons for Q>1, and both compressive and rarefactive fast ion-acoustic solitons for Q<1 are shown to exist.