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Observations of a Quasi-periodic, Fast-Propagating Magnetosonic Wave in Multiple Wavelengths and Its Interaction with Other Magnetic Structures
Shen YD(申远灯)1,2,3; Liu Y(刘煜)1,2; Su, JT2; Li, H3; Zhang XF(张雪飞)1; Tian ZJ(田占军)1; Zhao RJ(赵瑞娟)1; A. Elmhamdi1,4; Shen, YD (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Beijing 100012, Peoples R China.
发表期刊SOLAR PHYSICS
2013-12
卷号288期号:2页码:585-602
DOI10.1007/s11207-013-0395-4
产权排序第1完成单位
收录类别SCI
关键词Coronal Seismology Waves Magnetohydrodynamic Magnetic Fields Corona
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.
项目资助者Natural Science Foundation of China [10933003, 11078004, 11073050] ; National Key Research Science Foundation [2011CB811400] ; Knowledge Innovation Program of the CAS [KJCX2-EW-T07] ; Western Light Youth Project of CAS ; Open Research Program of the Key Laboratory of Solar Activity of CAS [KLSA201204, KLSA201219] ; Open Research Program of the Key Laboratory of Dark Matter and Space Astronomy of CAS [DMS2012KT008] ; CAS fellowships for young international scientists [2012Y1JA0002] ; GOES ; SDO which is a mission for NASA's Living With a Star (LWS) program
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0038-0938
URL查看原文
归档日期2013-11-09
WOS记录号WOS:000326813900008
WOS研究方向Astronomy & Astrophysics
WOS类目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
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/7188
专题选址与日冕观测组
通讯作者Shen, YD (reprint author), Chinese Acad Sci, Yunnan Astron Observ, Beijing 100012, Peoples R China.
作者单位1.Yunnan Astronomical Observatory, CAS, Kunming, 650011, China
2.Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing, 100012, China
3.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, CAS, Nanjing, 210008, China
4.Physics and Astronomy Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
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Shen YD,Liu Y,Su, JT,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 YD.,Liu Y.,Su, JT.,Li, H.,Zhang XF.,...&Shen, YD .(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 YD,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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