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The Structure of Ion-Acoustic Waves in a Superthermal Pair-Ion Plasmas

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Year: 2012
COI code: ISAV02_137
Paper Language: English

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Authors The Structure of Ion-Acoustic Waves in a Superthermal Pair-Ion Plasmas

  Mostafa Mehdipoor - Faculty of Science, Gonbad Kavous University, Gonbad Kavous, Iran


Ion-acoustic (IA) solitons in a collisionless pair-ion plasma consisting of positive and negative ions and superthermal electrons are studied by using the reductive perturbation method.The basic set of fluid equations is reduced to Korteweg-de Vries (K-dV) equation. It is found that both compressive and rarefactive solitons can propagate in this system. Also, the effectsof spectral index kappa, negative to positive ion density ratio and mass ratio of positive tonegative ions on IA solitons structure are also discussed. Our results may be useful in investigation ion acoustic solitary waves both in space and in laboratory experiments plasmas where two distinct groups of ions and superthermal electrons are present.


ion-acoustic waves; negative ion plasmas; superthermal electrons; k-dv equation

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COI code: ISAV02_137

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Mehdipoor, Mostafa, 2012, The Structure of Ion-Acoustic Waves in a Superthermal Pair-Ion Plasmas, 2nd International Conference on Acoustics and Vibration, تهران, دانشگاه صنعتي شريف, the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
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The University/Research Center Information:
Type: state university
Paper No.: 1430
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