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DOI | 10.1029/2021GL093524 |
Fast cross-scale energy transfer during turbulent magnetic reconnection | |
T.K.M. Nakamura; H. Hasegawa; K. J. Genestreti; R. E. Denton; T. D. Phan; J. E. Stawarz; R. Nakamura; W. D. Nystrom | |
2021-06-19 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Magnetic reconnection is a key fundamental process in collisionless plasmas that explosively converts magnetic energy to plasma kinetic and thermal energies through a change of magnetic field topology in a central electron-scale region called the electron diffusion region (EDR). Past simulations and observations demonstrated that this process causes efficient energy conversion through the formation of multiple macro-scale or micro-scale magnetic islands/flux ropes. However, the coupling of these phenomena on different spatiotemporal scales is still poorly understood. Here, based on a new large-scale fully-kinetic simulation with a realistic, initially-fluctuating magnetic field, we demonstrate that macro-scale evolution of turbulent reconnection involving merging of macro-scale islands induces repeated, quick formation of new electron-scale islands within the EDR which soon grow to larger scales. This process causes an efficient cross-scale energy transfer from electron- to larger-scales, and leads to strong electron energization within the growing islands. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/330679 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | T.K.M. Nakamura,H. Hasegawa,K. J. Genestreti,et al. Fast cross-scale energy transfer during turbulent magnetic reconnection[J]. Geophysical Research Letters,2021. |
APA | T.K.M. Nakamura.,H. Hasegawa.,K. J. Genestreti.,R. E. Denton.,T. D. Phan.,...&W. D. Nystrom.(2021).Fast cross-scale energy transfer during turbulent magnetic reconnection.Geophysical Research Letters. |
MLA | T.K.M. Nakamura,et al."Fast cross-scale energy transfer during turbulent magnetic reconnection".Geophysical Research Letters (2021). |
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