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3D numerical experiment for EUV waves caused by flux rope eruption
Mei ZX(梅志星)1,2; Keppens, R.3; Cai QW(蔡强伟)1,2,4; Ye J(叶景)1,2; Xie XY(谢小妍)1,2,4; Li Y(李燕)1,2
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2020-04-01
卷号493期号:4页码:4816-4829
DOI10.1093/mnras/staa555
产权排序第1完成单位
收录类别SCI
关键词MHD shock waves waves Sun: chromosphere Sun: corona Sun: coronal mass ejections (CMEs)
摘要

We present a 3D magnetohydrodynamic numerical experiment of an eruptive magnetic flux rope (MFR) and the various types of disturbances it creates, and employ forward modelling of extreme ultraviolet (EUV) observables to directly compare numerical results and observations. In the beginning, the MFR erupts and a fast shock appears as an expanding 3D dome. Under the MFR, a current sheet grows, in which magnetic field lines reconnect to form closed field lines, which become the outermost part of an expanding coronal mass ejection (CME) bubble. In our synthetic SDO/AIA images, we can observe the bright fast shock dome and the hot MFR in the early stages. Between the MFR and the fast shock, a dimming region appears. Later, the MFR expands so its brightness decays and it becomes difficult to identify the boundary of the CME bubble and distinguish it from the bright MFR in synthetic images. Our synthetic images for EUV disturbances observed at the limb support the bimodality interpretation for coronal disturbances. However, images for disturbances propagating on-disc do not support this interpretation because the morphology of the bright MFR does not lead to circular features in the EUV disturbances. At the flanks of the CME bubble, slow shocks, velocity vortices and shock echoes can also be recognized in the velocity distribution. The slow shocks at the flanks of the bubble are associated with a 3D velocity separatrix. These features are found in our high-resolution simulation, but may be hard to observe as shown in the synthetic images.

资助项目Strategic Priority Research Program of CAS[XDA17040507] ; Strategic Priority Research Program of CAS[QYZDJ-SSWSLH012] ; Strategic Priority Research Program of CAS[XDA15010900] ; National Science Foundation of China (NSFC)[11933009] ; National Science Foundation of China (NSFC)[U1631130] ; National Science Foundation of China (NSFC)[11273055] ; National Science Foundation of China (NSFC)[11303088] ; National Science Foundation of China (NSFC)[11573064] ; National Science Foundation of China (NSFC)[11403100] ; National Science Foundation of China (NSFC)[11333007] ; National Science Foundation of China (NSFC)[11603070] ; project of the Group for Innovation of Yunnan Province[2018HC023] ; Yunnan Ten-Thousand Talents Plan-Yunling Scholar Project ; Yunnan Science Foundation of China[2019FB005] ; FWONSFC[G0E9619N] ; European Research Council (ERC) under the European Unions Horizon 2020 research and innovation programme[833251 PROMINENT ERC-ADG 2018] ; Internal Funds KU Leuven[C14/19/089]
项目资助者Strategic Priority Research Program of CAS[XDA17040507, QYZDJ-SSWSLH012, XDA15010900] ; National Science Foundation of China (NSFC)[11933009, U1631130, 11273055, 11303088, 11573064, 11403100, 11333007, 11603070] ; project of the Group for Innovation of Yunnan Province[2018HC023] ; Yunnan Ten-Thousand Talents Plan-Yunling Scholar Project ; Yunnan Science Foundation of China[2019FB005] ; FWONSFC[G0E9619N] ; European Research Council (ERC) under the European Unions Horizon 2020 research and innovation programme[833251 PROMINENT ERC-ADG 2018] ; Internal Funds KU Leuven[C14/19/089]
语种英语
学科领域天文学 ; 太阳与太阳系 ; 太阳物理学
学科门类理学 ; 理学::天文学
文章类型Article
出版者OXFORD UNIV PRESS
出版地GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS记录号WOS:000539094400016
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]CORONAL MASS EJECTION ; SOLAR-FLARE WAVES ; LARGE-SCALE WAVES ; EIT WAVES ; SOHO/EIT OBSERVATIONS ; SHOCK-WAVES ; MODEL ; RECONNECTION ; SIMULATION ; EVOLUTION
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/23457
专题太阳物理研究组
通讯作者Mei ZX(梅志星)
作者单位1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650011, P. R. China
2.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100101, China
3.Centre for mathematical Plasma Astrophysics, Department of Mathematics, KU Leuven, Celestijnenlaan 200B, 3001 Leuven, Belgium
4.University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049, China
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
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GB/T 7714
Mei ZX,Keppens, R.,Cai QW,et al. 3D numerical experiment for EUV waves caused by flux rope eruption[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,493(4):4816-4829.
APA Mei ZX,Keppens, R.,Cai QW,Ye J,Xie XY,&Li Y.(2020).3D numerical experiment for EUV waves caused by flux rope eruption.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,493(4),4816-4829.
MLA Mei ZX,et al."3D numerical experiment for EUV waves caused by flux rope eruption".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 493.4(2020):4816-4829.
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