Abstract
By using the Thomas-Fermi electron density distribution for quantum degenerate electrons, the hydrodynamic equations for ions, and the Poisson equation, planar and nonplanar ion-acoustic solitary waves in an unmagnetized collisionless plasma are investigated. The reductive perturbation method is used to derive cylindrical and spherical Korteweg-de Vries equations. Numerical solutions of the latter are presented. The present results can be useful in understanding the features of small but finite amplitude localized ion-acoustic solitary pulses in a degenerate plasma
| Original language | English |
|---|---|
| Pages (from-to) | 052303 |
| Journal | Physics of Plasmas |
| Volume | 15 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 2008 |
Keywords
- ion-acoustic-waves
- warm multicomponent plasma
- solitary waves
- dusty plasmas
- double-layers
- solitons
- amplitude
- temperature
- propagation
- beam
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