TETHER-CUTTING RECONNECTION BETWEEN TWO SOLAR FILAMENTS TRIGGERING OUTFLOWS AND A CORONAL MASS EJECTION
文献类型：期刊论文
| 作者 | Chen, Huadong1 ; Zhang, Jun1; Li, Leping1; Ma, Suli2; Li,Leping; Zhang,Jun; Chen,Huadong
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2016-02-20 |
| 卷号 | 818期号:2 |
| 关键词 | Sun: activity Sun: filaments, prominences Sun: flares Sun: UV radiation |
| 英文摘要 | Triggering mechanisms of solar eruptions have long been a challenge. A few previous case studies have indicated that preceding gentle filament merging via magnetic reconnection may launch following intense eruption, according to the tether-cutting (TC) model. However, the detailed process of TC reconnection between filaments has not been exhibited yet. In this work, we report the high-resolution observations from the Interface Region Imaging Spectrometer (IRIS) of TC reconnection between two sheared filaments in NOAA active region 12146. The TC reconnection commenced on similar to 15:35 UT on 2014 August 29 and triggered an eruptive GOES C4.3-class flare similar to 8 minutes later. An associated coronal mass ejection appeared in the field of view of the Solar and Heliospheric Observatory/LASCO C2 about 40 minutes later. Thanks to the high spatial resolution of IRIS data, bright plasma outflows generated by the TC reconnection are clearly observed, which moved along the subarcsecond fine-scale flux tube structures in the erupting filament. Based on the imaging and spectral observations, the mean plane-of-sky and line-of-sight velocities of the TC reconnection outflows are separately measured to be similar to 79 and 86 km s(-1), which derives an average real speed of similar to 120 km s(-1). In addition, it is found that spectral features, such as peak intensities, Doppler shifts, and line widths in the TC reconnection region are evidently enhanced compared to those in the nearby region just before the flare. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000370444800006 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5434]  |
| 专题 | 国家天文台_太阳物理研究部 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Solar Act, Natl Astron Observ, Beijing 100012, Peoples R China 2.China Univ Petr, Coll Sci, Qingdao 266580, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Huadong,Zhang, Jun,Li, Leping,et al. TETHER-CUTTING RECONNECTION BETWEEN TWO SOLAR FILAMENTS TRIGGERING OUTFLOWS AND A CORONAL MASS EJECTION[J]. ASTROPHYSICAL JOURNAL LETTERS,2016,818(2). |
| APA | Chen, Huadong.,Zhang, Jun.,Li, Leping.,Ma, Suli.,Li,Leping.,...&Chen,Huadong.(2016).TETHER-CUTTING RECONNECTION BETWEEN TWO SOLAR FILAMENTS TRIGGERING OUTFLOWS AND A CORONAL MASS EJECTION.ASTROPHYSICAL JOURNAL LETTERS,818(2). |
| MLA | Chen, Huadong,et al."TETHER-CUTTING RECONNECTION BETWEEN TWO SOLAR FILAMENTS TRIGGERING OUTFLOWS AND A CORONAL MASS EJECTION".ASTROPHYSICAL JOURNAL LETTERS 818.2(2016). |
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来源：国家天文台
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