Magnetic field evolution leading to solar flares II. Cases with high magnetic shear and flare-related shear change
文献类型:期刊论文
作者 | Li, H![]() |
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:483-497 |
关键词 | Sun : flares Sun : magnetic fields Sun : X-rays |
英文摘要 | Following Paper I in which we considered five solar flares: we have selected another three solar flares greater than GOES X-ray class M/H alpha importance 1. The three active regions discussed here are characterized by high magnetic shear. We investigated the spatial relationships among Her flare ribbons, soft X-ray (SXR) hare loops, and magnetic configurations for the three flares produced in these active regions. Our results show that only one of these three flares satisfies the sufficient conditions for a flare to occur proposed by Hagyard (1990, AAA 052.075.047). We also discuss the magnetic shear changes around the flaring time only along the neutral lines associated with the studied flares and over the whole flaring area. The flare-related changes on the neutral line are small (2 degrees-4 degrees) and the association of these changes with the hares is not conclusive. The average shear in the flaring areas of the flares associated with high shear decreases significantly after the flares and it may be a better parameter to characterize the hare-related shear changes in such cases. |
WOS标题词 | Science & Technology ; Physical Sciences |
类目[WOS] | Astronomy & Astrophysics |
研究领域[WOS] | Astronomy & Astrophysics |
关键词[WOS] | X-RAY TELESCOPE ; ACTIVE-REGION ; A MISSION ; JUNE 1991 ; CONFIGURATION ; CURRENTS ; SYSTEM |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000088014000009 |
源URL | [http://libir.pmo.ac.cn/handle/332002/15991] ![]() |
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 II. Cases with high magnetic shear and flare-related shear change[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2000,52(3):483-497. |
APA | Li, H,Sakurai, T,Ichimoto, K,&UeNo, S.(2000).Magnetic field evolution leading to solar flares II. Cases with high magnetic shear and flare-related shear change.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,52(3),483-497. |
MLA | Li, H,et al."Magnetic field evolution leading to solar flares II. Cases with high magnetic shear and flare-related shear change".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 52.3(2000):483-497. |
入库方式: OAI收割
来源:紫金山天文台
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