Abstract
Language | English |
---|---|
Pages | 4057-4061 |
Number of pages | 4 |
Journal | Physics Letters A |
Volume | 372 |
Issue number | 22 |
DOIs | |
Publication status | Published - 26 May 2008 |
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Keywords
- warm multicomponent plasma
- solitons
- generation
- beam
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Ion-acoustic solitary waves in a dense pair-ion plasma containing degenerate electrons and positrons. / Abdelsalam, U.M.; Moslem, W.M.; Shukla, P.K.
In: Physics Letters A, Vol. 372, No. 22, 26.05.2008, p. 4057-4061.Research output: Contribution to journal › Article
TY - JOUR
T1 - Ion-acoustic solitary waves in a dense pair-ion plasma containing degenerate electrons and positrons
AU - Abdelsalam, U.M.
AU - Moslem, W.M.
AU - Shukla, P.K.
PY - 2008/5/26
Y1 - 2008/5/26
N2 - Fully nonlinear propagation of ion-acoustic solitary waves in a collisionless dense/quantum electron-positron-ion plasma is investigated. The electrons and positrons are assumed to follow the Thomas-Fermi density distribution and the ions are described by the hydrodynamic equations. An energy balance-like equation involving a Sagdeev-type pseudo-potential is derived. Finite amplitude solutions are obtained numerically and their characteristics are discussed. The small-but finite-amplitude limit is also considered and an exact analytical solution is obtained. The present studies might be helpful to understand the excitation of nonlinear ion-acoustic solitary waves in a degenerate plasma such as in superdense white dwarfs.
AB - Fully nonlinear propagation of ion-acoustic solitary waves in a collisionless dense/quantum electron-positron-ion plasma is investigated. The electrons and positrons are assumed to follow the Thomas-Fermi density distribution and the ions are described by the hydrodynamic equations. An energy balance-like equation involving a Sagdeev-type pseudo-potential is derived. Finite amplitude solutions are obtained numerically and their characteristics are discussed. The small-but finite-amplitude limit is also considered and an exact analytical solution is obtained. The present studies might be helpful to understand the excitation of nonlinear ion-acoustic solitary waves in a degenerate plasma such as in superdense white dwarfs.
KW - warm multicomponent plasma
KW - solitons
KW - generation
KW - beam
UR - http://dx.doi.org/10.1016/j.physleta.2008.02.086
U2 - 10.1016/j.physleta.2008.02.086
DO - 10.1016/j.physleta.2008.02.086
M3 - Article
VL - 372
SP - 4057
EP - 4061
JO - Physics Letters A
T2 - Physics Letters A
JF - Physics Letters A
SN - 0375-9601
IS - 22
ER -