Observations of a Quasi-periodic, Fast-Propagating Magnetosonic Wave in Multiple Wavelengths and Its Interaction with Other Magnetic Structures
文献类型：期刊论文
| 作者 | Shen, Y. -D.1,2,3; Liu, Y.1,2 ; Su, J. -T.2; Li, H.3; Zhang, X. -F.1; Tian, Z. -J.1; Zhao, R. -J.1; Elmhamdi, A.1,4
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| 刊名 | SOLAR PHYSICS
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| 出版日期 | 2013-12-01 |
| 卷号 | 288期号:2页码:585-602 |
| ISSN号 | 0038-0938 |
| 关键词 | Waves, magnetohydrodynamic Coronal seismology Magnetic fields, corona |
| 通讯作者 | Shen, YD (通讯作者) Chinese Acad Sci, Yunnan Astron Observ, Beijing 100012, Peoples R China. 增强组织信息的名称 Chinese Academy of Sciences |
| 英文摘要 | We present observations of a quasi-periodic fast-propagating (QFP) magnetosonic wave on 23 April 2012, with high-resolution observations taken by the Atmospheric Imaging Assembly onboard the Solar Dynamics Observatory. Three minutes after the start of a C2.0 flare, wave trains were first observed along an open divergent loop system in 171 observations at a distance of 150 Mm from the footpoint of the guiding loop system and with a speed of 689 km s(-1), then they appeared in 193 observations after their interaction with a perpendicular, underlaying loop system on the path; in the meantime; their speed decelerated to 343 km s(-1) within a short time. The sudden deceleration of the wave trains and their appearance in 193 observations are interpreted through a geometric effect and the density increase of the guiding loop system, respectively. We find that the wave trains have a common period of 80 seconds with the flare. In addition, a few low frequencies are also identified in the QFP wave. We propose that the generation of the period of 80 seconds was caused by the periodic releasing of energy bursts through some nonlinear processes in magnetic reconnection, while the low frequencies were possibly the leakage of pressure-driven oscillations from the photosphere or chromosphere, which could be an important source for driving coronal QFP waves. Our results also indicate that the properties of the guiding magnetic structure, such as the distributions of magnetic field and density as well as geometry, are crucial for modulating the propagation behaviors of QFP waves. |
| 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] | CORONAL LOOP OSCILLATIONS ; SOLAR CORONA ; MAGNETOACOUSTIC WAVES ; MASS EJECTION ; MHD WAVES ; PHOTOSPHERIC OSCILLATIONS ; TRANSITION REGION ; CURRENT SHEETS ; QUIET SUN ; FLARE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000326813900008 |
| 公开日期 | 2014-01-08 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/9844]  |
| 专题 | 紫金山天文台_分子云与恒星形成研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Yunnan Astron Observ, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China 3.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China 4.King Saud Univ, Coll Sci, Dept Phys & Astron, Riyadh 11451, Saudi Arabia |
| 推荐引用方式 GB/T 7714 | Shen, Y. -D.,Liu, Y.,Su, J. -T.,et al. Observations of a Quasi-periodic, Fast-Propagating Magnetosonic Wave in Multiple Wavelengths and Its Interaction with Other Magnetic Structures[J]. SOLAR PHYSICS,2013,288(2):585-602. |
| APA | Shen, Y. -D..,Liu, Y..,Su, J. -T..,Li, H..,Zhang, X. -F..,...&Elmhamdi, A..(2013).Observations of a Quasi-periodic, Fast-Propagating Magnetosonic Wave in Multiple Wavelengths and Its Interaction with Other Magnetic Structures.SOLAR PHYSICS,288(2),585-602. |
| MLA | Shen, Y. -D.,et al."Observations of a Quasi-periodic, Fast-Propagating Magnetosonic Wave in Multiple Wavelengths and Its Interaction with Other Magnetic Structures".SOLAR PHYSICS 288.2(2013):585-602. |
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来源：紫金山天文台
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