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First Unambiguous Imaging of Large-scale Quasi-periodic Extreme-ultraviolet Wave or Shock
Shen YD(申远灯)1,2,3; Chen,P. F.4,5; Liu,Ying D.2,6; Shibata,Kazunari7; Tang,Zehao1,6; Liu Y(刘煜)1,3
Source PublicationASTROPHYSICAL JOURNAL
2019-03-01
Volume873Issue:1Pages:13
DOI10.3847/1538-4357/ab01dd
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: activity Sun: coronal mass ejections (CMEs) Sun: flares Sun: oscillations waves
Abstract

We report the first unambiguous quasi-periodic large-scale extreme-ultraviolet (EUV) wave or shock that was detected by the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory. During the whip-like unwinding eruption of a small filament on 2012 April 24, multiple consecutive large-scale wavefronts emanating from AR11467 were observed simultaneously along the solar surface and a closed transequatorial loop system. In the meantime, an upward propagating dome-shaped wavefront was also observed, whose initial speed and deceleration are about 1392 km s(-1) and 1.78 km s(-2), respectively. Along the solar surface, the quasi-peridoic wavefronts had a period of about 163 +/- 21 s and propagated at a nearly constant speed of 747 +/- 26 km s(-1); they interacted with active region AR11469 and launched a sympathetic upward propagating secondary EUV wave. The wavefronts along the loop system propagated at a speed of 897 km s(-1), and they were reflected back at the southern end of the loop system at a similar speed. In addition to the propagating waves, a standing kink wave was also present in the loop system simultaneously. Periodicity analysis reveals that the period of the wavefronts was consistent with that of the unwinding helical structures of the erupting filament. Based on these observational facts, we propose that the observed quasi-periodic EUV wavefronts were most likely excited by the periodic unwinding motion of the filament helical structures. In addition, two different seismological methods are applied to derive the magnetic field strength of the loop system, and for the first time the reliability of these inversion techniques are tested with the same magnetic structure.

Funding ProjectNatural Science Foundation of China[11773068] ; Natural Science Foundation of China[11633008] ; Natural Science Foundation of China[11403097] ; Natural Science Foundation of China[11533005] ; Yunnan Science Foundation[2015FB191,2017FB006] ; West Light Foundation of Chinese Academy of Sciences ; Specialized Research Fund for State Key Laboratories ; Jiangsu 333 Project[BRA2017359] ; NSFC[41774179]
Funding OrganizationNatural Science Foundation of China[11773068, 11633008, 11403097, 11533005] ; Yunnan Science Foundation[2015FB191,2017FB006] ; West Light Foundation of Chinese Academy of Sciences ; Specialized Research Fund for State Key Laboratories ; Jiangsu 333 Project[BRA2017359] ; NSFC[41774179]
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAN
ISSN0004-637X
URL查看原文
WOS IDWOS:000460057100008
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTION ; X-RAY OBSERVATIONS ; H-ALPHA MORETON ; EIT WAVES ; EUV WAVE ; SOLAR ATMOSPHERE ; QUADRATURE OBSERVATIONS ; SOHO/EIT OBSERVATIONS ; NUMERICAL EXPERIMENTS ; STATISTICAL-ANALYSIS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/19370
Collection选址与日冕观测组
Corresponding AuthorShen YD(申远灯)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, People's Republic of China
2.State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
3.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing, 100012, People's Republic of China
4.School of Astronomy and Space Science, Nanjing University, Nanjing 210023, People's Republic of China
5.Key Laboratory of Modern Astronomy and Astrophysics, Nanjing University, Nanjing 210023, People's Republic of China
6.University of Chinese Academy of Sciences, Beijing, People's Republic of China
7.Kwasan and Hida Observatories, Kyoto University, Yamashina-ku, Kyoto 607-8471, Japan
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Shen YD,Chen,P. F.,Liu,Ying D.,et al. First Unambiguous Imaging of Large-scale Quasi-periodic Extreme-ultraviolet Wave or Shock[J]. ASTROPHYSICAL JOURNAL,2019,873(1):13.
APA Shen YD,Chen,P. F.,Liu,Ying D.,Shibata,Kazunari,Tang,Zehao,&Liu Y.(2019).First Unambiguous Imaging of Large-scale Quasi-periodic Extreme-ultraviolet Wave or Shock.ASTROPHYSICAL JOURNAL,873(1),13.
MLA Shen YD,et al."First Unambiguous Imaging of Large-scale Quasi-periodic Extreme-ultraviolet Wave or Shock".ASTROPHYSICAL JOURNAL 873.1(2019):13.
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