Magnetic field evolution leading to solar flares I. Cases with low magnetic shear and flux emergence
文献类型：期刊论文
| 作者 | Li, H ; Sakurai, T; Ichimoto, K; UeNo, S
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| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
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| 出版日期 | 2000 |
| 卷号 | 52期号:3页码:465-481 |
| 关键词 | Sun : flares Sun : magnetic fields Sun : X-rays |
| ISSN号 | 0004-6264 |
| 英文摘要 | We picked up five solar flares larger than GOES X-ray class M/H alpha importance 1, and studied the magnetic evolution of the corresponding active regions. In particular, we investigated the spatial relationships among H alpha flare ribbons, soft X-ray (SXR) hare loops, and magnetic configurations. Our results show that all of these flares are not associated with high magnetic shear, but with emerging flux, indicating that flux emergence is a common phenomenon in this kind of solar flare with low magnetic shear. The maximum values of the transverse magnetic fields on the neutral lines responsible for these hares are 300-800 G. All of these flares but one have multiple (more than two) H alpha ribbons, and almost all of these ribbons are located at the footpoints of SXR flare loops. The flare-related shear changes, which can be both positive and negative, may be determined by the balance of the energy carried by the emerging flux and that required to power the flare. |
| 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] | X-RAY TELESCOPE ; A MISSION ; MULTIWAVELENGTH OBSERVATIONS ; ACTIVE REGIONS ; RECONNECTION ; CONFIGURATION ; CURRENTS ; TOPOLOGY ; SYSTEM ; SITES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000088014000008 |
| 公开日期 | 2013-02-01 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/8261]  |
| 专题 | 紫金山天文台_太阳高能及相关物理过程研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Natl Astron Observ, Mitaka, Tokyo 1818588, Japan 3.Kyoto Univ, Hida Observ, Gifu 5061317, Japan |
| 推荐引用方式 GB/T 7714 | Li, H,Sakurai, T,Ichimoto, K,et al. Magnetic field evolution leading to solar flares I. Cases with low magnetic shear and flux emergence[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2000,52(3):465-481. |
| APA | Li, H,Sakurai, T,Ichimoto, K,&UeNo, S.(2000).Magnetic field evolution leading to solar flares I. Cases with low magnetic shear and flux emergence.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,52(3),465-481. |
| MLA | Li, H,et al."Magnetic field evolution leading to solar flares I. Cases with low magnetic shear and flux emergence".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 52.3(2000):465-481. |
入库方式： OAI收割
来源：紫金山天文台
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