TEMPORAL EVOLUTION OF THE MAGNETIC TOPOLOGY OF THE NOAA ACTIVE REGION 11158
文献类型：期刊论文
| 作者 | Zhao, Jie1,2; Li, Hui1,2 ; Pariat, Etienne3; Schmieder, Brigitte3; Guo, Yang4; Wiegelmann, Thomas5
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2014-05-20 |
| 卷号 | 787期号:1页码:0 |
| 关键词 | Sun: corona Sun: flares Sun: magnetic fields |
| ISSN号 | 0004-637X |
| 英文摘要 | We studied the temporal evolution of the magnetic topology of the active region (AR) 11158 based on the reconstructed three-dimensional magnetic fields in the corona. The non-linear force-free field extrapolation method was applied to the 12 minute cadence data obtained with the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory during 5 days. By calculating the squashing degree factor Q in the volume, the derived quasi-separatrix layers (QSLs) show that this AR has an overall topology, resulting from a magnetic quadrupole, including a hyperbolic flux tube (HFT) configuration that is relatively stable at the timescale of the flare (similar to 1-2 hr). A strong QSL, which corresponds to some highly sheared arcades that might be related to the formation of a flux rope, is prominent just before the M6.6 and X2.2 flares, respectively. These facts indicate the close relationship between the strong QSL and the high flare productivity of AR 11158. In addition, with a close inspection of the topology, we found a small-scale HFT that has an inverse tear-drop structure above the aforementioned QSL before the X2.2 flare. It indicates the existence of magnetic flux rope at this place. Even though a global configuration (HFT) is recognized in this AR, it turns out that the large-scale HFT only plays a secondary role during the eruption. In conclusion, we dismiss a trigger based on the breakout model and highlight the central role of the flux rope in the related eruption. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | CORONAL MASS EJECTIONS ; QUASI-SEPARATRIX LAYERS ; HYPERBOLIC FLUX TUBES ; 2011 FEBRUARY 15 ; DYNAMICS-OBSERVATORY SDO ; SOLAR-FLARES ; X2.2 FLARE ; MAGNETOHYDRODYNAMIC SIMULATION ; RECONNECTION DRIVEN ; CONFINED ERUPTION |
| 收录类别 | SCI |
| 原文出处 | 10.1088/0004-637X/787/1/88 |
| 语种 | 英语 |
| WOS记录号 | WOS:000335924200088 |
| 公开日期 | 2014-11-20 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/10627]  |
| 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, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China 3.Observ Paris, LESIA, F-92195 Meudon, France 4.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Jiangsu, Peoples R China 5.Max Planck Inst Sonnensyst Forsch, D-37077 Gottingen, Germany |
| 推荐引用方式 GB/T 7714 | Zhao, Jie,Li, Hui,Pariat, Etienne,et al. TEMPORAL EVOLUTION OF THE MAGNETIC TOPOLOGY OF THE NOAA ACTIVE REGION 11158[J]. ASTROPHYSICAL JOURNAL,2014,787(1):0. |
| APA | Zhao, Jie,Li, Hui,Pariat, Etienne,Schmieder, Brigitte,Guo, Yang,&Wiegelmann, Thomas.(2014).TEMPORAL EVOLUTION OF THE MAGNETIC TOPOLOGY OF THE NOAA ACTIVE REGION 11158.ASTROPHYSICAL JOURNAL,787(1),0. |
| MLA | Zhao, Jie,et al."TEMPORAL EVOLUTION OF THE MAGNETIC TOPOLOGY OF THE NOAA ACTIVE REGION 11158".ASTROPHYSICAL JOURNAL 787.1(2014):0. |
入库方式： OAI收割
来源：紫金山天文台
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