气候变化领域集成服务门户(CCPortal): Turbulence-Driven Magnetic Reconnection in the Magnetosheath Downstream of a Quasi-Parallel Shock: A Three-Dimensional Global Hybrid Simulation

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DOI	10.1029/2019GL085661
	Turbulence-Driven Magnetic Reconnection in the Magnetosheath Downstream of a Quasi-Parallel Shock: A Three-Dimensional Global Hybrid Simulation
	Lu Q.; Wang H.; Wang X.; Lu S.; Wang R.; Gao X.; Wang S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:1
英文摘要	Satellite observations with high-resolution measurements have demonstrated the existence of intermittent current sheets and occurrence of magnetic reconnection in a quasi-parallel magnetosheath behind the terrestrial bow shock. In this letter, by performing a three-dimensional global hybrid simulation, we investigated the characteristics of the quasi-parallel magnetosheath of the bow shock, which is formed due to the interaction of the solar wind with the Earth's magnetosphere. Current sheets with widths of several ion inertial lengths are found to be produced in the magnetosheath after the upstream large-amplitude electromagnetic waves penetrate through the shock and are then compressed in the downstream. Magnetic reconnection consequently occurs in these current sheets, where high-speed ion flow jets are identified in the outflow region. Simultaneously, flux ropes with the extension (along the y direction) of about several Earth's radii are also observed. Our simulation shed new insight on the mechanism for the occurrence of magnetic reconnection in the quasi-parallel shocked magnetosheath. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Electromagnetic waves; Magnetosphere; Plasma shock waves; Turbulence; Earth's magnetosphere; High-resolution measurements; Hybrid simulation; Magnetic reconnections; Magnetosheaths; Quasi-parallel shock; Satellite observations; Terrestrial bow shock; Magnetism; electromagnetic wave; magnetosphere; outflow; simulation; solar wind; three-dimensional modeling; turbulence
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170852
作者单位	CAS Key Lab of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China; CAS Center for Excellence in Comparative Planetology, Hefei, China; Physics Department, Auburn University, Auburn, AL, United States; Department of Earth, Planetary, and Space Sciences, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA, United States
推荐引用方式 GB/T 7714	Lu Q.,Wang H.,Wang X.,et al. Turbulence-Driven Magnetic Reconnection in the Magnetosheath Downstream of a Quasi-Parallel Shock: A Three-Dimensional Global Hybrid Simulation[J],2020,47(1).
APA	Lu Q..,Wang H..,Wang X..,Lu S..,Wang R..,...&Wang S..(2020).Turbulence-Driven Magnetic Reconnection in the Magnetosheath Downstream of a Quasi-Parallel Shock: A Three-Dimensional Global Hybrid Simulation.Geophysical Research Letters,47(1).
MLA	Lu Q.,et al."Turbulence-Driven Magnetic Reconnection in the Magnetosheath Downstream of a Quasi-Parallel Shock: A Three-Dimensional Global Hybrid Simulation".Geophysical Research Letters 47.1(2020).