ARE IRIS BOMBS CONNECTED TO ELLERMAN BOMBS?
文献类型：期刊论文
| 作者 | Tian, Hui1,2; Xu Z(徐稚)3 ; He, Jiansen1; Madsen, Chad4,5
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2016-06-20 |
| 卷号 | 824期号:2 |
| ISSN号 | 0004-637X |
| 关键词 | line: profiles magnetic reconnection Sun: chromosphere Sun: photosphere Sun: transition region |
| 通讯作者 | Tian, H |
| 产权排序 | 第三完成单位 |
| 英文摘要 | Recent observations by the Interface Region Imaging Spectrograph (IRIS) have revealed pockets of hot gas (similar to 2-8 x 10(4) K) potentially resulting from magnetic reconnection in the partially ionized lower solar atmosphere (IRIS bombs; IBs). Using joint observations between IRIS and the Chinese New Vacuum Solar Telescope, we have identified 10 IBs. We find that 3 are unambiguously and 3 others are possibly connected to Ellerman bombs (EBs), which show intense brightening of the extended H-alpha wings without leaving an obvious signature in the H-alpha core. These bombs generally reveal the following distinct properties: (1) the OIV 1401.156 angstrom and 1399.774 angstrom lines are absent or very weak; (2) the Mn I 2795.640 angstrom line manifests as an absorption feature superimposed on the greatly enhanced Mg II k line wing; (3) the Mg II k and h lines show intense brightening in the wings and no dramatic enhancement in the cores; (4) chromospheric absorption lines such as Ni II 1393.330 angstrom and 1335.203 angstrom are very strong; and (5) the 1700 angstrom images obtained with the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory reveal intense and compact brightenings. These properties support the formation of these bombs in the photosphere, demonstrating that EBs can be heated much more efficiently than previously thought. We also demonstrate that the Mg II k and h lines can be used to investigate EBs similarly to H-alpha, which opens a promising new window for EB studies. The remaining four IBs obviously have no connection to EBs and they do not have the properties mentioned above, suggesting a higher formation layer, possibly in the chromosphere. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | REGION-IMAGING-SPECTROGRAPH ; DYNAMICS-OBSERVATORY SDO ; SOLAR TRANSITION REGION ; EXPLOSIVE EVENTS ; MAGNETIC RECONNECTION ; H-ALPHA ; HYDROGEN-BOMBS ; O-IV ; ATMOSPHERE ; TELESCOPE |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.3847/0004-637X/824/2/96/meta# |
| 语种 | 英语 |
| WOS记录号 | WOS:000381912800032 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/9688]  |
| 专题 | 云南天文台_抚仙湖太阳观测站 |
| 作者单位 | 1.School of Earth and Space Sciences, Peking University, Beijing 100871, China 2.State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190, China 3.Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China 4.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA 5.Center for Space Physics, Boston University, 725 Commonwealth Avenue, Boston, MA 02215, USA |
| 推荐引用方式 GB/T 7714 | Tian, Hui,Xu Z,He, Jiansen,et al. ARE IRIS BOMBS CONNECTED TO ELLERMAN BOMBS?[J]. ASTROPHYSICAL JOURNAL,2016,824(2). |
| APA | Tian, Hui,Xu Z,He, Jiansen,&Madsen, Chad.(2016).ARE IRIS BOMBS CONNECTED TO ELLERMAN BOMBS?.ASTROPHYSICAL JOURNAL,824(2). |
| MLA | Tian, Hui,et al."ARE IRIS BOMBS CONNECTED TO ELLERMAN BOMBS?".ASTROPHYSICAL JOURNAL 824.2(2016). |
入库方式： OAI收割
来源：云南天文台
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