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Anomalous-plasmoid-ejection-induced secondary magnetic reconnection: modeling solar flares and coronal mass ejections by laser–plasma experiments

ISSN号：2095-4719
期刊名称：《高功率激光科学与工程：英文版》
时间：0
分类：P353[天文地球—空间物理学;天文地球—地球物理学]
作者机构：School of Physics and Optoelectronic Engineering,Ludong University, Beijing National Laboratory of Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences, Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences, Research Center for Laser Fusion,China Academy of Engineering Physics, Institute for Fusion Theory and Simulation,Physics Department,Zhejiang University, Institute for Theoretical Physics I,Ruhr University, Institute of Applied Physics and Computational Mathematics, National Laboratory on High Power Lasers and Physics, Key Laboratory for Laser Plasmas (MoE) and Department of Physics,Shanghai Jiao Tong University
相关基金：jointly supported by the National Natural Science Foundation of China (Nos. 11121504, 11074297, 11274152);the CAS project of KJCX2-YWT01;the National Basic Research Program of China (No. 2007CB815101)

作者： Quanli Dong, Dawei Yuan, Shoujun Wang, Xun Liu, Yutong Li, Xiaoxuan Lin, Huigang Wei, Jiayong Zhong, Shaoen Jiang, Yongkun Ding, Bobin Jiang, Kai Du, Yongjian Tang, Mingyang Yu, Xiantu He, Neng Hua, Zhanfeng Qiao, Kuixi Huang, Ming Chen, Jianqiang Zhu, Gang Zhao, Zhengming Sheng, Jie Zhang

关键词： laboratory, ASTROPHYSICS, magnetic, RECONNECTION, LASER, PLASMA, solar, flare, CORONAL, mass, EJECTION

中文摘要：

The driving mechanism of solar flares and coronal mass ejections is a topic of ongoing debate, apart from the consensus that magnetic reconnection plays a key role during the impulsive process. While present solar research mostly depends on observations and theoretical models, laboratory experiments based on high-energy density facilities provide the third method for quantitatively comparing astrophysical observations and models with data achieved in experimental settings.In this article, we show laboratory modeling of solar flares and coronal mass ejections by constructing the magnetic reconnection system with two mutually approaching laser-produced plasmas circumfused of self-generated megagauss magnetic fields. Due to the Euler similarity between the laboratory and solar plasma systems, the present experiments demonstrate the morphological reproduction of flares and coronal mass ejections in solar observations in a scaled sense,and confirm the theory and model predictions about the current-sheet-born anomalous plasmoid as the initial stage of coronal mass ejections, and the behavior of moving-away plasmoid stretching the primary reconnected field lines into a secondary current sheet conjoined with two bright ridges identified as solar flares.

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