DIFFRACTION, REFRACTION, AND REFLECTION OF AN EXTREME-ULTRAVIOLET WAVE OBSERVED DURING ITS INTERACTIONS WITH REMOTE ACTIVE REGIONS
文献类型：期刊论文
| 作者 | Shen YD(申远灯)1,2,3,4 ; Liu Y(刘煜)1,3,4; Su, JT3; Li, H4; Zhao RJ(赵瑞娟)1; Tian ZJ(田占军)1; Ichimoto, K2; Shibata, K2
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| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
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| 出版日期 | 2013-08-20 |
| 卷号 | 773期号:2页码:33- |
| 关键词 | Sun: corona Sun: coronal mass ejections (CMEs) Sun: flares Sun: oscillations |
| ISSN号 | 2041-8205 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Shen, YD (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | We present observations of the diffraction, refraction, and reflection of a global extreme-ultraviolet (EUV) wave propagating in the solar corona. These intriguing phenomena are observed when the wave interacts with two remote active regions, and together they exhibit properties of an EUV wave. When the wave approached AR11465, it became weaker and finally disappeared in the active region, but a few minutes later a new wavefront appeared behind the active region, and it was not concentric with the incoming wave. In addition, a reflected wave was also simultaneously observed on the wave incoming side. When the wave approached AR11459, it transmitted through the active region directly and without reflection. The formation of the new wavefront and the transmission could be explained with diffraction and refraction effects, respectively. We propose that the different behaviors observed during the interactions may be caused by different speed gradients at the boundaries of the two active regions. We find that the EUV wave formed ahead of a group of expanding loops a few minutes after the start of the loops' expansion, which represents the initiation of the associated coronal mass ejection (CME). Based on these results, we conclude that the EUV wave should be a nonlinear magnetosonic wave or shock driven by the associated CME, which propagated faster than the ambient fast mode speed and gradually slowed down to an ordinary linear wave. Our observations support the hybrid model that includes both fast wave and slow non-wave components. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | CORONAL MASS EJECTION ; GLOBAL EUV WAVE ; SOLAR CORONA ; EIT WAVES ; MORETON WAVES ; SOHO/EIT OBSERVATIONS ; SDO/AIA OBSERVATIONS ; MAGNETOSONIC WAVES ; STEREO ; FLARE |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/2041-8205/773/2/L33/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000322899600016 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/7190]  |
| 专题 | 云南天文台_选址与日冕观测组 |
| 作者单位 | 1.Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Kwasan and Hida Observatories, Kyoto University, Kyoto 6078471, Japan 3.Key Laboratory of Solar Activity, Chinese Academy of Sciences, Beijing 100012, China 4.Key Laboratory of Dark Matter and Space Astronomy, Chinese Academy of Sciences, Nanjing 210008, China |
| 推荐引用方式 GB/T 7714 | Shen YD,Liu Y,Su, JT,et al. DIFFRACTION, REFRACTION, AND REFLECTION OF AN EXTREME-ULTRAVIOLET WAVE OBSERVED DURING ITS INTERACTIONS WITH REMOTE ACTIVE REGIONS[J]. ASTROPHYSICAL JOURNAL LETTERS,2013,773(2):33-. |
| APA | Shen YD.,Liu Y.,Su, JT.,Li, H.,Zhao RJ.,...&Shibata, K.(2013).DIFFRACTION, REFRACTION, AND REFLECTION OF AN EXTREME-ULTRAVIOLET WAVE OBSERVED DURING ITS INTERACTIONS WITH REMOTE ACTIVE REGIONS.ASTROPHYSICAL JOURNAL LETTERS,773(2),33-. |
| MLA | Shen YD,et al."DIFFRACTION, REFRACTION, AND REFLECTION OF AN EXTREME-ULTRAVIOLET WAVE OBSERVED DURING ITS INTERACTIONS WITH REMOTE ACTIVE REGIONS".ASTROPHYSICAL JOURNAL LETTERS 773.2(2013):33-. |
入库方式： OAI收割
来源：云南天文台
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