Three-dimensional Simulation of Thermodynamics on Confined Turbulence in a Large-scale CME-flare Current Sheet

doi:10.3847/1538-4357/acf129

	Three-dimensional Simulation of Thermodynamics on Confined Turbulence in a Large-scale CME-flare Current Sheet
	Ye J(叶景)4,5,6; Raymond, John C.3; Mei ZX(梅志星)5,6; Cai, Qiangwei 2,5; Chen YH(陈雨豪)1,6; Li Y(李燕)5,6; Lin J(林隽)1,5,6
刊名	ASTROPHYSICAL JOURNAL
	2023-10-01
卷号	955 期号:2
ISSN号	0004-637X
DOI	10.3847/1538-4357/acf129
产权排序	第1完成单位
文献子类	Article
英文摘要	Turbulence plays a key role in forming the complex geometry of the large-scale current sheet (CS) and fast energy release in a solar eruption. In this paper, we present full 3D high-resolution simulations for the process of a moderate coronal mass ejection (CME) and the thermodynamical evolution of the highly confined CS. Copious elongated blobs are generated owing to tearing and plasmoid instabilities, giving rise to a higher reconnection rate, and undergo the splitting, merging, and kinking processes in a more complex way in 3D. A detailed thermodynamical analysis shows that the CS is mainly heated by adiabatic and numerical viscous terms, and thermal conduction is the dominant factor that balances the energy inside the CS. Accordingly, the temperature of the CS reaches to a maximum of about 20 MK, and the range of temperatures is relatively narrow. From the face-on view in the synthetic Atmospheric Imaging Assembly 131 & ANGS;, the downflowing structures with similar morphology to supra-arcade downflows are mainly located between the post-flare loops and loop top, while moving blobs can extend spikes higher above the loop top. The downward-moving plasmoids can keep the twisted magnetic field configuration until the annihilation at the flare loop top, indicating that plasmoid reconnection dominates in the lower CS. Meanwhile, the upward-moving ones turn into turbulent structures before arriving at the bottom of the CME, implying that turbulent reconnection dominates in the upper CS. The spatial distributions of the turbulent energy and anisotropy are addressed, which show a significant variation in the spectra with height.
学科主题	天文学 ; 太阳与太阳系 ; 太阳物理学
URL标识	查看原文
出版地	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
资助项目	Software: MPI-AMRVAC.
WOS关键词	CORONAL MASS EJECTION ; FLUX ROPE ; MAGNETIC RECONNECTION ; NUMERICAL EXPERIMENTS ; SOLAR-FLARES ; SPECTROSCOPIC OBSERVATIONS ; MODEL ; DRIVEN ; EVOLUTION ; TOP
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:001067917900001
资助机构	Software: MPI-AMRVAC.
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ynao.ac.cn/handle/114a53/26215]
专题	云南天文台_太阳物理研究组
通讯作者	Ye J(叶景)
作者单位	1.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China 2.Institute of Space Physics, Luoyang Normal University, Luoyang, Henan 471934, People's Republic of China; 3.Smithsonian Astrophysical Observatory, 60 Garden Street, MS 15, Cambridge, MA 02138, USA; 4.Yunnan Province China-Malaysia HF-VHF Advanced Radio Astronomy Technology International Joint Laboratory, Kunming, Yunnan 650216, People's Republic of China; 5.Yunnan Key Laboratory of Solar Physics and Space Science, P.O. Box 110, Kunming, Yunnan 650216, People's Republic of China; 6.Yunnan Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650216, People's Republic of China; yj@ynao.ac.cn;
推荐引用方式 GB/T 7714	Ye J,Raymond, John C.,Mei ZX,et al. Three-dimensional Simulation of Thermodynamics on Confined Turbulence in a Large-scale CME-flare Current Sheet[J]. ASTROPHYSICAL JOURNAL,2023,955(2).
APA	Ye J.,Raymond, John C..,Mei ZX.,Cai, Qiangwei.,Chen YH.,...&Lin J.(2023).Three-dimensional Simulation of Thermodynamics on Confined Turbulence in a Large-scale CME-flare Current Sheet.ASTROPHYSICAL JOURNAL,955(2).
MLA	Ye J,et al."Three-dimensional Simulation of Thermodynamics on Confined Turbulence in a Large-scale CME-flare Current Sheet".ASTROPHYSICAL JOURNAL 955.2(2023).