Analysis of the coronal source of the partially limb-occulted flare on 2002 July 20
文献类型：期刊论文
| 作者 | Shen, Jin-Hua1,2; Melnikov, Victor1,3; Zhou, Tuan-Hui1 ; Ji, Hai-Sheng1
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2013-08-01 |
| 卷号 | 13期号:8页码:961-977 |
| 关键词 | Sun: activity Sun: X-ray Sun: flares |
| 合作状况 | 国内 |
| 英文摘要 | We carry out a detailed analysis of the X3.5 solar flare that occurred on 2002 July 20, which is the strongest partially limb-occulted flare ever observed by the RHESSI satellite. The main results are: (1) during the main impulsive phase that lasts similar to 10 minutes, the motion of the thermal sources follows a U-shaped trajectory. Non-thermal sources move in a similar way, but in a series of larger zigzags. We further show that the non-thermal sources are actually leading the contraction motion. (2) During the main impulsive phase, X-ray sources at different energies continuously form a loop-like configuration, with the highest energy source (up to similar to 100 keV) and the lowest energy source (down to similar to 10 keV) being located at two ends. The entire loop-like configuration moves in a U-shaped trajectory, while keeping the order of descending energy from highest to lowest during motion. Two non-thermal hard Xray sources with different energies are spatially well separated in the distribution. The unusual complexities of the X-ray emissions in the tenuous solar corona challenge interpretations using bremsstrahlung in a simple magnetic configuration. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | HARD X-RAY ; SOLAR-FLARE ; MAGNETIC RECONNECTION ; PARTICLE-ACCELERATION ; RHESSI OBSERVATIONS ; NOVEMBER 3 ; EMISSION ; LOOPS ; TELESCOPE ; SHRINKAGE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000323688500008 |
| 公开日期 | 2014-01-20 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/10042]  |
| 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.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Russian Acad Sci, Cent Astron Observ Pulkovo, St Petersburg 196140, Russia |
| 推荐引用方式 GB/T 7714 | Shen, Jin-Hua,Melnikov, Victor,Zhou, Tuan-Hui,et al. Analysis of the coronal source of the partially limb-occulted flare on 2002 July 20[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2013,13(8):961-977. |
| APA | Shen, Jin-Hua,Melnikov, Victor,Zhou, Tuan-Hui,&Ji, Hai-Sheng.(2013).Analysis of the coronal source of the partially limb-occulted flare on 2002 July 20.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,13(8),961-977. |
| MLA | Shen, Jin-Hua,et al."Analysis of the coronal source of the partially limb-occulted flare on 2002 July 20".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 13.8(2013):961-977. |
入库方式： OAI收割
来源：紫金山天文台
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