气候变化领域集成服务门户(CCPortal): On the Impact of a Streaming Oxygen Population on Collisionless Magnetic Reconnection

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DOI	10.1029/2020GL089462
	On the Impact of a Streaming Oxygen Population on Collisionless Magnetic Reconnection
	Kolstø H.M.; Hesse M.; Norgren C.; Tenfjord P.; Spinnangr S.F.; Kwagala N.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	Using 2.5-D Particle-In-Cell (PIC) simulations, we investigate how magnetotail reconnection is affected by a cold, streaming, oxygen plasma population, attributed to an ionospheric source, in the inflow region. As the tailward streaming oxygen reaches the current layer, a tailward motion of the reconnection site is induced. Due to the much longer cyclotron period of the oxygen ions, oxygen cannot couple as directly into the reconnection dynamics as protons. We find that the oxygen ions couple indirectly by means of impacting the electron dynamics. Therefore, a demagnetized species can, in fact, alter the dynamics of the reconnection site. We see further that the reconnection rate remains unchanged relative to a nonstreaming run. Our results may prove useful for understanding the development and dynamics of magnetospheric substorms and storms. ©2020. The Authors.
英文关键词	Dynamics; Indium compounds; Magnetoplasma; Magnetosphere; Plasma simulation; Electron dynamics; Magnetic reconnections; Magnetospheric substorms; Magnetotail reconnection; Oxygen plasmas; Particle-in-cell simulations; Reconnection rate; Reconnection sites; Oxygen; electron; ionosphere; magnetotail; oxygen; plasma; simulation; storm
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/169442
作者单位	Space Plasma Physics Group, University of Bergen, Bergen, Norway; NASA Ames Research CenterCA, United States
推荐引用方式 GB/T 7714	Kolstø H.M.,Hesse M.,Norgren C.,et al. On the Impact of a Streaming Oxygen Population on Collisionless Magnetic Reconnection[J],2020,47(22).
APA	Kolstø H.M.,Hesse M.,Norgren C.,Tenfjord P.,Spinnangr S.F.,&Kwagala N..(2020).On the Impact of a Streaming Oxygen Population on Collisionless Magnetic Reconnection.Geophysical Research Letters,47(22).
MLA	Kolstø H.M.,et al."On the Impact of a Streaming Oxygen Population on Collisionless Magnetic Reconnection".Geophysical Research Letters 47.22(2020).