Spectroscopic and imaging observations of small-scale reconnection events
文献类型：期刊论文
| 作者 | Li, Dong; Li, Leping; Ning, Zongjun; Li, D (reprint author), Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Sci, Nanjing 210034, Jiangsu, Peoples R China.; Li, D (reprint author), Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100012, Peoples R China.; Li, D (reprint author), Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China. |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2018 |
| 卷号 | 479期号:2页码:2382-2388 |
| 关键词 | Line: Profiles Magnetic Reconnection Sun: Corona Sun: Transition Region Sun: Uv Radiation |
| ISSN号 | 0035-8711 |
| 英文摘要 | We present spectroscopic and imaging observations of small-scale reconnection events on the Sun. Using Interface Region Imaging Spectrograph (IRIS) observations, one reconnection event is first detected as IRIS jets with fast bidirectional velocities in the chromosphere and transition region, which are identified as non-Gaussian broadenings with two extended wings in the line profiles of SiIV, C II and MgIIk. The magnetograms under the IRIS jets from helioseismic and magnetic images simultaneously exhibit magnetic flux cancellation, supporting the idea that the IRIS jets are driven by magnetic reconnection. Atmospheric Imaging Assembly images also show an extreme ultraviolet (EUV) brightening shortly after the underlying IRIS jets, i.e. in the 131-, 171-, 193-, 211- and 94-angstrom channels, implying that the overlying EUV brightening in the corona is caused by the IRIS jets in the chromosphere and transition region. We also find another three reconnection events, which show the same features during this IRIS observation. Our observational results suggest that small-scale reconnection events might contribute to coronal heating. A new result is that the process of magnetic reconnection is detected from the photosphere through the chromosphere and transition region to the corona. |
| 语种 | 英语 |
| 资助机构 | ESA ; Norwegian Space Centre ; NSFC [11603077, 11573072, 11673034, 11533008, 11773079, 11790302, 11333009] ; CRP [KLSA201708] ; Youth Fund of Jiangsu [BK20161095, BK20171108] ; National Natural Science Foundation of China [U1731241] ; Strategic Priority Research Program on Space Science, CAS [XDA15052200, XDA15320301] ; Specialized Research Fund for State Key Laboratories [2010DP173032] |
| 源URL | [http://ir.nssc.ac.cn/handle/122/6401]  |
| 专题 | 国家空间科学中心_微波遥感部 |
| 通讯作者 | Li, D (reprint author), Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Sci, Nanjing 210034, Jiangsu, Peoples R China.; Li, D (reprint author), Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100012, Peoples R China.; Li, D (reprint author), Chinese Acad Sci, State Key Lab Space Weather, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, Dong,Li, Leping,Ning, Zongjun,et al. Spectroscopic and imaging observations of small-scale reconnection events[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2018,479(2):2382-2388. |
| APA | Li, Dong,Li, Leping,Ning, Zongjun,Li, D ,Li, D ,&Li, D .(2018).Spectroscopic and imaging observations of small-scale reconnection events.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,479(2),2382-2388. |
| MLA | Li, Dong,et al."Spectroscopic and imaging observations of small-scale reconnection events".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 479.2(2018):2382-2388. |
入库方式： OAI收割
来源：国家空间科学中心
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