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EUV Waves Driven by the Sudden Expansion of Transequatorial Loops Caused by Coronal Jets
Shen YD(申远灯)1,2,3,4; Tang, Zehao1,5; Miao YH(苗玉虎)1,5; Su, Jiangtao3,5; Liu Y(刘煜)1
Source PublicationASTROPHYSICAL JOURNAL LETTERS
2018-06-10
Volume860Issue:1
DOI10.3847/2041-8213/aac8dd
Contribution Rank第1完成单位
Indexed BySCI
KeywordSun: Activity Sun: Flares Sun: Oscillations
Abstract

We present two events to study the driving mechanism of extreme-ultraviolet (EUV) waves that are not associated with coronal mass ejections (CMEs), by using high-resolution observations taken by the Atmospheric Imaging Assembly on board the Solar Dynamics Observatory. Observational results indicate that the observed EUV waves were accompanied by flares and coronal jets, but not the CMEs that were regarded as drivers of most EUV waves in previous studies. In the first case, it is observed that a coronal jet is ejected along a transequatorial loop system at a plane-of-the-sky (POS) speed of 335 +/- 22 km s(-1); in the meantime, an arc-shaped EUV wave appeared on the eastern side of the loop system. In addition, the EUV wave further interacted with another interconnecting loop system and launched a fast propagating (QFP) magnetosonic wave along the loop system, which had a period of 200 s and a speed of 388 +/- 65 km s(-1), respectively. In the second case, we observed a coronal jet that ejected at a POS speed of 282 +/- 44 km s(-1) along a transequatorial loop system as well as the generation of bright EUV waves on the eastern side of the loop system. Based on the observational results, we propose that the observed EUV waves on the eastern side of the transequatorial loop systems are fast-mode magnetosonic waves and that they are driven by the sudden lateral expansion of the transequatorial loop systems due to the direct impingement of the associated coronal jets, while the QFP wave in the fist case formed due to the dispersive evolution of the disturbance caused by the interaction between the EUV wave and the interconnecting coronal loops. It is noted that EUV waves driven by sudden loop expansions have shorter lifetimes than those driven by CMEs.

Funding ProjectNatural Science Foundation of China[11773068] ; Natural Science Foundation of China[11633008] ; Natural Science Foundation of China[11403097] ; Natural Science Foundation of China[11503084] ; Natural Science Foundation of China[11773038] ; Yunnan Science Foundation[2015FB191] ; Yunnan Science Foundation[2017FB006] ; Specialized Research Fund for State Key Laboratories ; Open Research Program of CAS Key Laboratory of Solar Activity[KLSA201813] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2014047]
Funding OrganizationNatural Science Foundation of China[11773068, 11633008, 11403097, 11503084, 11773038] ; Yunnan Science Foundation[2015FB191, 2017FB006] ; Specialized Research Fund for State Key Laboratories ; Open Research Program of CAS Key Laboratory of Solar Activity[KLSA201813] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2014047]
Language英语
Subject Area天文学 ; 太阳与太阳系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN2041-8205
URL查看原文
WOS IDWOS:000434981500002
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordH-ALPHA SURGES ; X-RAY JETS ; EXTREME-ULTRAVIOLET WAVE ; 2006 DECEMBER 6 ; SOLAR CORONA ; ALFVEN WAVES ; EIT WAVES ; TRANSVERSE OSCILLATIONS ; NUMERICAL EXPERIMENTS ; FILAMENT ERUPTIONS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/12399
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.CAS Key Laboratory of Solar Activity, National Astronomical Observatories, Beijing 100012, People's Republic of China
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing, 100012, People's Republic of China
5.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Shen YD,Tang, Zehao,Miao YH,et al. EUV Waves Driven by the Sudden Expansion of Transequatorial Loops Caused by Coronal Jets[J]. ASTROPHYSICAL JOURNAL LETTERS,2018,860(1).
APA Shen YD,Tang, Zehao,Miao YH,Su, Jiangtao,&Liu Y.(2018).EUV Waves Driven by the Sudden Expansion of Transequatorial Loops Caused by Coronal Jets.ASTROPHYSICAL JOURNAL LETTERS,860(1).
MLA Shen YD,et al."EUV Waves Driven by the Sudden Expansion of Transequatorial Loops Caused by Coronal Jets".ASTROPHYSICAL JOURNAL LETTERS 860.1(2018).
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