Turbulent mass transfer caused by vortex induced reconnection in collisionless magnetospheric plasmas

	Turbulent mass transfer caused by vortex induced reconnection in collisionless magnetospheric plasmas
	Nakamura, T. K. M.; Hasegawa, H.; Daughton, W.; Eriksson, S.; Li, W. Y.; Nakamura, R.; Nakamura, TKM (reprint author), Austrian Acad Sci, Space Res Inst, A-8010 Graz, Austria.
刊名	NATURE COMMUNICATIONS
	2017
卷号	8 页码:1582
ISSN号	2041-1723
英文摘要	Magnetic reconnection is believed to be the main driver to transport solar wind into the Earth's magnetosphere when the magnetopause features a large magnetic shear. However, even when the magnetic shear is too small for spontaneous reconnection, the Kelvin-Helmholtz instability driven by a super-Alfvenic velocity shear is expected to facilitate the transport. Although previous kinetic simulations have demonstrated that the non-linear vortex flows from the Kelvin-Helmholtz instability gives rise to vortex-induced reconnection and resulting plasma transport, the system sizes of these simulations were too small to allow the reconnection to evolve much beyond the electron scale as recently observed by the Magnetospheric Multiscale (MMS) spacecraft. Here, based on a large-scale kinetic simulation and its comparison with MMS observations, we show for the first time that ion-scale jets from vortex-induced reconnection rapidly decay through self-generated turbulence, leading to a mass transfer rate nearly one order higher than previous expectations for the Kelvin-Helmholtz instability.
语种	英语
资助机构	Austrian Research Fund (FWF) [I2016-N20] ; DOE Office of Science User Facility [DE-AC05-00OR22725] ; NASA [NNH13AV26I, NNX08AO84G] ; NASA MMS-Phase E
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/6139]
专题	国家空间科学中心_空间科学部
通讯作者	Nakamura, TKM (reprint author), Austrian Acad Sci, Space Res Inst, A-8010 Graz, Austria.
推荐引用方式 GB/T 7714	Nakamura, T. K. M.,Hasegawa, H.,Daughton, W.,et al. Turbulent mass transfer caused by vortex induced reconnection in collisionless magnetospheric plasmas[J]. NATURE COMMUNICATIONS,2017,8:1582.
APA	Nakamura, T. K. M..,Hasegawa, H..,Daughton, W..,Eriksson, S..,Li, W. Y..,...&Nakamura, TKM .(2017).Turbulent mass transfer caused by vortex induced reconnection in collisionless magnetospheric plasmas.NATURE COMMUNICATIONS,8,1582.
MLA	Nakamura, T. K. M.,et al."Turbulent mass transfer caused by vortex induced reconnection in collisionless magnetospheric plasmas".NATURE COMMUNICATIONS 8(2017):1582.