Heavy ion acceleration in impulsive solar flares
文献类型：期刊论文
| 作者 | Wang, DY |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2002-07-01 |
| 卷号 | 19期号:7页码:1027-1030 |
| 英文摘要 | The abundance enhancements of heavy ions Ne, Mg, Si and Fe in impulsive solar energetic particle (SEP) events are explained by a plasma acceleration mechanism. In consideration of the fact that the coronal plasma is mainly composed of hydrogen and helium ions, we think that the ion-ion hybrid wave and quasi-perpendicular wave can be excited by the energetic electron beam in impulsive solar Bares. These waves may resonantly be absorbed by heavy ions when the frequencies of these waves are close to the second-harmonic gyrofrequencies of these heavy ions. This requires the coronal plasma temperature to be located in the range of T similar to (5 - 9) x 10(6) K in impulsive solar fares and makes the average,onic charge state of these heavy ions in impulsive SEP events higher than the average ionic charge state of these heavy ions in gradual SEP events. These pre-heated and enhanced heavy ions can successively and stochastically be accelerated by Alfven turbulence and then form a power-law distribution in impulsive SEP events. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | PARTICLE-ACCELERATION ; CHARGE ; EVENTS ; IRON |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000177137900046 |
| 公开日期 | 2013-01-29 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/7789]  |
| 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.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, DY. Heavy ion acceleration in impulsive solar flares[J]. CHINESE PHYSICS LETTERS,2002,19(7):1027-1030. |
| APA | Wang, DY.(2002).Heavy ion acceleration in impulsive solar flares.CHINESE PHYSICS LETTERS,19(7),1027-1030. |
| MLA | Wang, DY."Heavy ion acceleration in impulsive solar flares".CHINESE PHYSICS LETTERS 19.7(2002):1027-1030. |
入库方式： OAI收割
来源：紫金山天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。