气候变化领域集成服务门户(CCPortal): Flux Transfer Event Showers at Mercury: Dependence on Plasma β and Magnetic Shear and Their Contribution to the Dungey Cycle

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DOI	10.1029/2020GL089784
	Flux Transfer Event Showers at Mercury: Dependence on Plasma β and Magnetic Shear and Their Contribution to the Dungey Cycle
	Sun W.J.; Slavin J.A.; Smith A.W.; Dewey R.M.; Poh G.K.; Jia X.; Raines J.M.; Livi S.; Saito Y.; Gershman D.J.; DiBraccio G.A.; Imber S.M.; Guo J.P.; Fu S.Y.; Zong Q.G.; Zhao J.T.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:21
英文摘要	Mercury's flux transfer event (FTE) showers are dayside magnetopause crossings accompanied by large numbers (≥10) of magnetic flux ropes (FRs). These shower events are common, occurring during 52% (1,953/3,748) of the analyzed crossings. Shower events are observed with magnetic shear angles (θ) from 0° to 180° across the magnetopause and magnetosheath plasma β from 0.1 to 10 but are most prevalent for high θ and low plasma β. Individual FR duration correlates positively, while spacing correlates negatively, with θ and plasma β. FR flux content and core magnetic field intensity correlate negatively with plasma β, but they do not correlate with θ. During shower intervals, FRs carry 60% to 85% of the magnetic flux required to supply Mercury's Dungey cycle. The FTE showers and the large amount of magnetic flux carried by the FTE-type FRs appear quite different from observations at Earth and other planetary magnetospheres visited thus far. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Magnetic flux; Magnetopause; Plasma shock waves; Core magnetic fields; Flux transfer events; Large amounts; Magnetic flux ropes; Magnetic shear; Magnetopause crossings; Magnetosheath plasma; Planetary magnetosphere; Magnetoplasma; flux measurement; magnetic field; magnetopause; Mercury (planet); plasma; shear stress
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/169514
作者单位	Department of Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, United States; Mullard Space Science Laboratory, University College London, Dorking, United Kingdom; Center for Research and Exploration in Space Science and Technology II, Catholic University of America, Washington, D. C., United States; Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD, United States; South-West Research Institute, San Antonio, TX, United States; Japan Aerospace Exploration Agency, Institute of Space and Astronautical ScienceKanagawa, Japan; Department of Physics and Astronomy, University of Leicester, Leicester, United Kingdom; School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai, Guangdong, China; School of Earth and Space Sciences, Peking University, Beijing, China
推荐引用方式 GB/T 7714	Sun W.J.,Slavin J.A.,Smith A.W.,et al. Flux Transfer Event Showers at Mercury: Dependence on Plasma β and Magnetic Shear and Their Contribution to the Dungey Cycle[J],2020,47(21).
APA	Sun W.J..,Slavin J.A..,Smith A.W..,Dewey R.M..,Poh G.K..,...&Zhao J.T..(2020).Flux Transfer Event Showers at Mercury: Dependence on Plasma β and Magnetic Shear and Their Contribution to the Dungey Cycle.Geophysical Research Letters,47(21).
MLA	Sun W.J.,et al."Flux Transfer Event Showers at Mercury: Dependence on Plasma β and Magnetic Shear and Their Contribution to the Dungey Cycle".Geophysical Research Letters 47.21(2020).