期刊
ASTROPHYSICS AND SPACE SCIENCE
卷 341, 期 2, 页码 527-534出版社
SPRINGER
DOI: 10.1007/s10509-012-1089-3
关键词
Dust-ion acoustic waves; Sagdeev potential; Nonthermal electrons; Solitons
Propagation regimes of large-amplitude dust-ion acoustic solitary wave in a dusty plasma with nonthermal electrons are analyzed by employing the Sagdeev potential technique. Two domains of the Mach numbers are defined depending on the nonthermal and plasma parameters. The two types of soliton solution are found to be exited corresponding to certain values of the nonthermal parameter. Numerical solutions are presented that illustrate the dependence of soliton characteristics on practically interesting plasma and nonthermal parameters. The findings of this investigation could be useful in understanding the detected solitary waves in space plasma in the presence of nonthermal electrons such as electrostatic solitary structures observed in Saturn's E-ring.
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