Nonplanar dust ion-acoustic solitary and shock excitations in electronegative plasmas with trapped electrons

It is shown that the three-dimensional cylindrical Kadomtsev-Petviashvili (CKP) and the extended cylindrical Kadomtsev-Petviashvili (ECKP) equations can describe the propagation of nonplanar dust ion-acoustic excitations in a dusty plasma composed of positive ions, negative ions, stationary dust par...

Full description

Saved in:
Bibliographic Details
Published in:Astrophysics and space science 2012, Vol.337 (1), p.231-246
Main Authors: El-Labany, S. K., Moslem, W. M., El-Bedwehy, N. A., Abd El-Razek, H. N.
Format: Article
Language:English
Subjects:
Astrobiology
Astronomy
Astrophysics
Astrophysics and Astroparticles
Cosmology
Dust
Electrons
Ionosphere
Ions
Observations and Techniques
Original Article
Physics
Physics and Astronomy
Propagation
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Wave propagation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:It is shown that the three-dimensional cylindrical Kadomtsev-Petviashvili (CKP) and the extended cylindrical Kadomtsev-Petviashvili (ECKP) equations can describe the propagation of nonplanar dust ion-acoustic excitations in a dusty plasma composed of positive ions, negative ions, stationary dust particles, as well as trapped electrons or a small percentage of trapped electrons. It is found that the solution of the CKP equation supports only solitary pulses, while the ECKP equation describes the propagation of both solitary and shock excitations. The effects of physical parameters, namely negative ions density, dust grains density, positive-to-negative mass ratio, direction cosine of the wave propagation on the pulses profile are examined. Furthermore, the existence regions of either localized or shock pulses are investigated. The relevance of nonlinear structures in the Earth’s ionosphere and plasma experiment is discussed.
ISSN:0004-640X
1572-946X
DOI:10.1007/s10509-011-0827-2