气候变化领域集成服务门户(CCPortal): Juno Observations of Ion-Inertial Scale Flux Ropes in the Jovian Magnetotail

CCPortal

DOI	10.1029/2020GL089721
	Juno Observations of Ion-Inertial Scale Flux Ropes in the Jovian Magnetotail
	Sarkango Y.; Slavin J.A.; Jia X.; DiBraccio G.A.; Gershman D.J.; Connerney J.E.P.; Kurth W.S.; Hospodarsky G.B.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:2
英文摘要	Two ion-inertial scale magnetic flux ropes are identified in the Juno magnetic field measurements in the dawnside Jovian magnetotail. Previously reported plasmoids in this region had typical diameters of several Jovian radii (RJ). However, events reported here are only ∼0.15–0.19 RJ in diameter, assuming that they move at the local Alfven speed. Using the plasma density determined by the Juno Waves instrument, the diameters are calculated to be on the order of the local ion inertial length (∼0.6–1.6 di). Multiple reversals in the north-south component are observed ∼30 min before one of these events, which suggests that plasmoid ejection in the dawnside magnetotail may proceed via multiple X-line reconnection in a highly thinned cross-tail current sheet in a manner similar to that observed at Mercury and Earth. Further studies will be required to determine the contribution of these small flux ropes to mass loss through plasmoid ejection. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Ions; Plasma density; Cross-tail currents; Flux ropes; Ion inertial length; Magnetic flux ropes; Magnetotails; Mass loss; Plasmoid; Plasmoids; Rope
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/169217
作者单位	Department of Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States
推荐引用方式 GB/T 7714	Sarkango Y.,Slavin J.A.,Jia X.,et al. Juno Observations of Ion-Inertial Scale Flux Ropes in the Jovian Magnetotail[J],2021,48(2).
APA	Sarkango Y..,Slavin J.A..,Jia X..,DiBraccio G.A..,Gershman D.J..,...&Hospodarsky G.B..(2021).Juno Observations of Ion-Inertial Scale Flux Ropes in the Jovian Magnetotail.Geophysical Research Letters,48(2).
MLA	Sarkango Y.,et al."Juno Observations of Ion-Inertial Scale Flux Ropes in the Jovian Magnetotail".Geophysical Research Letters 48.2(2021).