Summary
A theoretical investigation has been made of obliquely propagating dustacoustic solitary waves in a magnetized dusty plasma which consists of a negatively charged cold dust fluid, Boltzmann-distributed electrons, and nonthermally distributed ions. The reductive perturbation method has been employed to derive the Kortewegde Vries (K-dV) equation which admits a solitary wave solution for small but finite amplitude limit. The solitary wave may change from compressive to rarefactive depending on the value of α (a parameter determining the number of nonthermal ions present in this plasma model). It is seen that for no background free electron there exist compressive (rarefactive) solitary waves when α ≤ (>)0.155 and that, as the number of the background free electrons increases, we need a higher value of α in order for rarefactve solitary waves to exist. The effects of obliqueness and external magnetic field on the nature of these compressive and rarefactive solitary waves are also discussed.
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Mamun, A.A. Obliquely propagating dust-acoustic solitary waves in a magnetized dusty plasma. Nouv Cim D 20, 1307–1312 (1998). https://doi.org/10.1007/BF03185459
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DOI: https://doi.org/10.1007/BF03185459