Oblique propagation of ion acoustic soliton-cnoidal waves in a magnetized electron-positron-ion plasma with superthermal electrons

Journal Article · Sat Mar 15 04:00:00 EDT 2014 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4868244· OSTI ID:22251938

Wang, Jian-Yong; Cheng, Xue-Ping; Tang, Xiao-Yan ^[1]; Yang, Jian-Rong ^[2]; Ren, Bo ^[3]

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1. Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 (China)
2. Department of Physics and Electronics, Shangrao Normal University, Jiangxi, Shangrao 334001 (China)
3. Institute of Nonlinear Science, Shaoxing University, Shaoxing 312000 (China)

The oblique propagation of ion-acoustic soliton-cnoidal waves in a magnetized electron-positron-ion plasma with superthermal electrons is studied. Linear dispersion relations of the fast and slow ion-acoustic modes are discussed under the weak and strong magnetic field situations. By means of the reductive perturbation approach, Korteweg-de Vries equations governing ion-acoustic waves of fast and slow modes are derived, respectively. Explicit interacting soliton-cnoidal wave solutions are obtained by the generalized truncated Painlevé expansion. It is found that every peak of a cnoidal wave elastically interacts with a usual soliton except for some phase shifts. The influence of the electron superthermality, positron concentration, and magnetic field obliqueness on the soliton-cnoidal wave are investigated in detail.

• OSTI ID: 22251938
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 3 Vol. 21; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISPERSION RELATIONS
ELECTRONS
ION ACOUSTIC WAVES
IONS
KORTEWEG-DE VRIES EQUATION
MAGNETIC FIELDS
MATHEMATICAL SOLUTIONS
PERTURBATION THEORY
PHASE SHIFT
POSITRONS
SOLITONS