The origin and acceleration of He-3 and heavy ions in the 2000 July 14 event
文献类型：期刊论文
| 作者 | Wu, Gui-Ping; Huang, Guang-Li; Tang, Yu-Hua; Dai, Yu |
| 刊名 | CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2007 |
| 卷号 | 7期号:1页码:141-147 |
| 关键词 | Sun : abundances waves shock wave acceleration of particles |
| ISSN号 | 1009-9271 |
| 英文摘要 | According to the evolutionary properties of the flare, halo coronal mass ejection (CME), enrichments of He-3 ions in the energy range of 3.5-26 MeV nucl(-1) and Ne, Mg, Si and Fe ions in the energy range of 8.5-15 MeV nucl(-1), we argue that the He-3 and heavy ions originate in the middle corona (similar to 0.1-1 R-circle dot) with well-connected open field lines to the Earth, where the magnetic reconnection leads to acceleration of the electrons and the production of type-.III burst during the decay phase of the soft X-ray emission. The acceleration of He-3 and heavy ions may have been accomplished in two stages: first H-He ion-ion hybrid waves may be easily excited by the energetic electron beams produced in the middle corona, and these waves are preferentially absorbed by He-3 and heavy ions due to their frequency being near the fandamental gyro frequency of the He-3 ions and harmonic gyro frequency of Ne, Mg, Si and Fe ions. These preheated ions escape into interplanetary space along the open field lines and may be further accelerated to tens of MeV nucl(-1) by CME-driven shock. The theoretical calculations show that the He-3 and heavy ions may be accelerated to the energy of similar to MeV nucl(-1) by the ion-ion hybrid waves and be further accelerated to the energy of similar to 100 MeV nucl(-1) by the shock wave: these are basically consistent with the observations. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | IMPULSIVE SOLAR-FLARES ; ENERGETIC PARTICLE EVENTS ; CORONAL MASS EJECTION ; HE-3-RICH EVENTS ; ELECTRON ACCELERATION ; X-RAY ; ENHANCEMENTS ; ENRICHMENT ; TURBULENCE ; SPECTRA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000244675200011 |
| 公开日期 | 2012-02-05 |
| 源URL | [http://159.226.72.40/handle/332002/2488]  |
| 专题 | 紫金山天文台_太阳活动的多波段观测研究团组 |
| 作者单位 | 1.SE Univ, Dept Phys, Nanjing 210096, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 3.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Gui-Ping,Huang, Guang-Li,Tang, Yu-Hua,et al. The origin and acceleration of He-3 and heavy ions in the 2000 July 14 event[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2007,7(1):141-147. |
| APA | Wu, Gui-Ping,Huang, Guang-Li,Tang, Yu-Hua,&Dai, Yu.(2007).The origin and acceleration of He-3 and heavy ions in the 2000 July 14 event.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,7(1),141-147. |
| MLA | Wu, Gui-Ping,et al."The origin and acceleration of He-3 and heavy ions in the 2000 July 14 event".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 7.1(2007):141-147. |
入库方式： OAI收割
来源：紫金山天文台
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