Auroral electron acceleration by dissipative solitary kinetic Alfven waves
文献类型：期刊论文
| 作者 | Wu, DJ ; Chao, JK
|
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2003-09-01 |
| 卷号 | 10期号:9页码:3787-3789 |
| 关键词 | LOW-BETA-PLASMA ALTITUDE DISTRIBUTIONS SATELLITE SHOCKS |
| ISSN号 | 1070-664X |
| 英文摘要 | The acceleration of auroral electrons has long been an open problem. In a recent work [Wu, Phys. Plasmas 10, 1364 (2003)], the model of a dissipative solitary kinetic Alfven wave (DSKAW) has been proposed to describe the physics of strong electric spikes observed often in the auroral ionosphere and magnetosphere. In this Brief Communication, the DSKAW model is applied to the auroral acceleration region and the possibility of DSKAWs producing auroral electrons is further discussed. The result shows that DSKAWs in the acceleration region can accelerate electrons enough to reach auroral energies and that the most efficient acceleration occurs just at the bottom of the acceleration region where the Alfven speed also peaks. Moreover, the acceleration mechanism by DSKAWs can plausibly explain the cut-off above 10 keV, which is inferred from the energy distribution of auroral precipitating electrons. (C) 2003 American Institute of Physics. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Fluids & Plasmas |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | LOW-BETA-PLASMA ; ALTITUDE ; DISTRIBUTIONS ; SATELLITE ; SHOCKS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000184899800042 |
| 公开日期 | 2012-08-08 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/4602]  |
| 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 | 1.CAS, Purple Mt Observ, Nanjing 210008, Peoples R China 2.NCU, Inst Space Sci, Chungli 32001, Taiwan 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, DJ,Chao, JK. Auroral electron acceleration by dissipative solitary kinetic Alfven waves[J]. PHYSICS OF PLASMAS,2003,10(9):3787-3789. |
| APA | Wu, DJ,&Chao, JK.(2003).Auroral electron acceleration by dissipative solitary kinetic Alfven waves.PHYSICS OF PLASMAS,10(9),3787-3789. |
| MLA | Wu, DJ,et al."Auroral electron acceleration by dissipative solitary kinetic Alfven waves".PHYSICS OF PLASMAS 10.9(2003):3787-3789. |
入库方式： OAI收割
来源：紫金山天文台
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