| GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS |
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Department of Physics and Institute of Modern Physics, Ningbo University, Ningbo 315211
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| ZHANG Shao-Hua1,2**, FENG Xue-Shang1, WANG Yi1,2, YANG Li-Ping1,2
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1SIGMA Weather Group, State Key Laboratory for Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190
2College of Earth Sciences, Graduate University of Chinese Academy of Sciences, Beijing 100049
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| Cite this article: |
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ZHANG Shao-Hua, FENG Xue-Shang, WANG Yi et al 2011 Chin. Phys. Lett. 28 089601 |
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Abstract The evolutionary process of magnetic reconnection under solar coronal conditions is investigated with our recently developed 2.5D adaptive mesh refinement (AMR) resistive magneto hydrodynamics (MHD) model. We reveal the successive fragmentation and merging of plasmoids in a long-thin current sheet with Lundquist number Rm=5.0×104. It is found that several big magnetic islands are formed eventually, with many slow-mode shocks bounding around the outflow regions. The multi-scale hierarchical-like structures of the magnetic reconnection are well resolved by the model and the AMR technique of the model can capture many fine pictures (e.g., the near-singular diffusion regions) of the development and simultaneously it can save a great deal of computing resources.
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| Keywords:
96.60.P-
96.60.Iv
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Received: 23 March 2011
Published: 28 July 2011
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