Alfvenic turbulence generated by a beam of energetic ions via spontaneous process
文献类型：期刊论文
| 作者 | Wu, D. J.; Chen, L. ; Wu, C. S.
|
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2012-02-01 |
| 卷号 | 19期号:2页码:024511 |
| ISSN号 | 1070-664X |
| 英文摘要 | Turbulent Alfven waves exist ubiquitously in space and astrophysical plasmas. They may be generated by many different source mechanisms. Among them, ion beam instability is well known. Almost all instability theories are interested in the discussion whether a perturbation will grow or be damped in a given unperturbed state. Few papers elaborate the meaning of growth or amplification in terms of the initial condition. This brief communication complements the existing discussions by considering the effect of spontaneous generation of the waves. In the present study, we estimate the level of spectral energy of Alfvenic turbulence due to the presence of a beam of energetic ions. It is found that the spectral energy may be much higher than the average kinetic energy of the background plasma particles. (C) 2012 American Institute of Physics. [doi:10.1063/1.3685725] |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Fluids & Plasmas |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | SOLAR-WIND ; ELECTROMAGNETIC INSTABILITIES ; INTERPLANETARY MEDIUM ; PLASMA INSTABILITIES ; WAVES ; FLARES ; SPACE ; FIELD |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301395800085 |
| 公开日期 | 2013-01-31 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/8060]  |
| 专题 | 紫金山天文台_太阳和太阳系等离子体研究团组 |
| 作者单位 | CAS, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, D. J.,Chen, L.,Wu, C. S.. Alfvenic turbulence generated by a beam of energetic ions via spontaneous process[J]. PHYSICS OF PLASMAS,2012,19(2):024511. |
| APA | Wu, D. J.,Chen, L.,&Wu, C. S..(2012).Alfvenic turbulence generated by a beam of energetic ions via spontaneous process.PHYSICS OF PLASMAS,19(2),024511. |
| MLA | Wu, D. J.,et al."Alfvenic turbulence generated by a beam of energetic ions via spontaneous process".PHYSICS OF PLASMAS 19.2(2012):024511. |
入库方式： OAI收割
来源：紫金山天文台
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