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Fast Magnetic Reconnection with Turbulence in High Lundquist Number Limit
Alternative TitleWOS:000575572600001
Yang, Liping1; Li, Hui1; Guo, Fan1; Li, Xiaocan1; Li, Shengtai1; He, Jiansen2; Zhang, Lei3; Feng, Xueshang
Source PublicationASTROPHYSICAL JOURNAL LETTERS
2020
Volume901Issue:2Pages:L22
DOI10.3847/2041-8213/abb76b
ISSN2041-8205
Language英语
KeywordSolar magnetic reconnection Interplanetary turbulence Computational methods Solar corona CURRENT SHEETS MHD
AbstractWe use extensive 3D resistive MHD simulations to study how large-scale current sheets will undergo fast reconnection in the high Lundquist numberSlimit (above similar to 10(4)), when the system is subject to different externally driven turbulence levels and the self-generated turbulence produced by 3D reconnection dynamics. We find that the normalized global reconnection rate similar to 0.01-0.13 is weakly dependent onS. Global reconnection with the classic inflow/outflow configurations is observed, and 3D flux ropes are hierarchically formed and ejected from reconnection regions. A statistical separation of the reconnected magnetic field lines follows a superdiffusive behavior, from which the rate is measured to be very similar to that obtained from the mixing of tracer populations. We find that the reconnection rate scales roughly linearly with the turbulence level during the peak of reconnection. This scaling is consistent with the turbulence properties produced by both the externally driven and self-generation processes. These results imply that large-scale thin current sheets tend to undergo rigorous reconnection.
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/7549
Collection中国科学院国家空间科学中心
Affiliation1.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, SIGMA Weather Grp, Beijing 100190, Peoples R China
2.Los Alamos Natl Lab, Theoret Div, MS B284, Los Alamos, NM 87545 USA
3.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China
4.Qian Xuesen Lab Space Technol, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Yang, Liping,Li, Hui,Guo, Fan,et al. Fast Magnetic Reconnection with Turbulence in High Lundquist Number Limit[J]. ASTROPHYSICAL JOURNAL LETTERS,2020,901(2):L22.
APA Yang, Liping.,Li, Hui.,Guo, Fan.,Li, Xiaocan.,Li, Shengtai.,...&Feng, Xueshang.(2020).Fast Magnetic Reconnection with Turbulence in High Lundquist Number Limit.ASTROPHYSICAL JOURNAL LETTERS,901(2),L22.
MLA Yang, Liping,et al."Fast Magnetic Reconnection with Turbulence in High Lundquist Number Limit".ASTROPHYSICAL JOURNAL LETTERS 901.2(2020):L22.
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