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Effects of Charge in Heavy Ions on Solitary Kinetic Alfvén Waves in Double-Ion Plasmas |
| YANG Lei1,2;WU De-Jin1 |
| 1Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008
2Graduate School of the Chinese Academy of Sciences, Beijing 100049 |
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| Cite this article: |
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YANG Lei, WU De-Jin 2006 Chin. Phys. Lett. 23 2155-2157 |
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Abstract After the charge of heavy ions is considered, a Sagdeev equation is obtained for the solitary kinetic lfvén waves (SKAWs) in a low-β (me/mp « β « or mp/me » α » 1), three-component (electrons, protons, and highly charged heavy ions) plasma. Numerical results show that the charge number q of heavy ions can cause the width of the solitary structure to decrease, but increase for the maximum of electron density nem≤ 1.2 and the initial abundance of heavy ions Cb0 ≤ 0.1. The parallel phase speed of the waves increases with larger q.
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| Keywords:
52.35.Sb
52.30.Ex
94.30.Tz
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Published: 01 August 2006
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| PACS: |
52.35.Sb
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(Solitons; BGK modes)
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52.30.Ex
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(Two-fluid and multi-fluid plasmas)
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94.30.Tz
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(Electromagnetic wave propagation)
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