气候变化领域集成服务门户(CCPortal): Wave-Particle Interactions Associated With Io's Auroral Footprint: Evidence of Alfvén; Ion Cyclotron; and Whistler Modes

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DOI	10.1029/2020GL088432
	Wave-Particle Interactions Associated With Io's Auroral Footprint: Evidence of Alfvén; Ion Cyclotron; and Whistler Modes
	Sulaiman A.H.; Hospodarsky G.B.; Elliott S.S.; Kurth W.S.; Gurnett D.A.; Imai M.; Allegrini F.; Bonfond B.; Clark G.; Connerney J.E.P.; Ebert R.W.; Gershman D.J.; Hue V.; Janser S.; Kotsiaros S.; Paranicas C.; Santolík O.; Saur J.; Szalay J.R.; Bolton S.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	The electrodynamic coupling between Io and Jupiter gives rise to wave-particle interactions across multiple spatial scales. Here we report observations during Juno's 12th perijove (PJ) high-latitude northern crossing of the flux tube connected to Io's auroral footprint. We focus on plasma wave measurements, clearly differentiating between magnetohydrodynamic (MHD), ion, and electron scales. We find (i) evidence of Alfvén waves undergoing a turbulent cascade, suggesting Alfvénic acceleration processes together with observations of bi-directional, broadband electrons; (ii) intense ion cyclotron waves with an estimated heating rate that is consistent with the generation of ion conics reported by Clark et al. (2020, https://doi.org/10.1029/2020GL090839); and (iii) whistler-mode auroral hiss radiation excited by field-aligned electrons. Such high-resolution wave and particle measurements provide an insight into satellite interactions in unprecedented detail. We further anticipate that these spatially well-constrained results can be more broadly applied to better understand processes of Jupiter's main auroral oval. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Cyclotron radiation; Cyclotrons; Electron beams; Ions; Magnetohydrodynamics; Magnetoplasma; Particle interactions; Plasma magnetohydrodynamic waves; Plasma waves; Wave plasma interactions; Acceleration process; Electrodynamic couplings; Field-aligned electrons; Ion cyclotron waves; Particle measurement; Turbulent cascade; Wave measurement; Wave-particle interactions; Atmospherics; aurora; electron density; heating; ion exchange; irradiation; Jupiter; particle settling; plasma; satellite altimetry; wave property
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/169478
作者单位	Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States; Southwest Research Institute, San Antonio, TX, United States; Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, TX, United States; Space Sciences, Technologies and Astrophysics Research Institute, LPAP, Université de Liège, Liège, Belgium; Applied Physics Laboratory, Johns Hopkins University, Laurel, MD, United States; Space Research Corporation, Annapolis, MD, United States; NASA/Goddard Space Flight Center, Greenbelt, MD, United States; Institute of Geophysics and Meteorology, University of Cologne, Cologne, Germany; DTU-Space, Technical University of Denmark, Kongens Lyngby, Denmark; Department of Space Physics, Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic; Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic; Department of Astrophysical Sciences, Princeton University, Princeton, NJ, United States
推荐引用方式 GB/T 7714	Sulaiman A.H.,Hospodarsky G.B.,Elliott S.S.,et al. Wave-Particle Interactions Associated With Io's Auroral Footprint: Evidence of Alfvén; Ion Cyclotron; and Whistler Modes[J],2020,47(22).
APA	Sulaiman A.H..,Hospodarsky G.B..,Elliott S.S..,Kurth W.S..,Gurnett D.A..,...&Bolton S.J..(2020).Wave-Particle Interactions Associated With Io's Auroral Footprint: Evidence of Alfvén; Ion Cyclotron; and Whistler Modes.Geophysical Research Letters,47(22).
MLA	Sulaiman A.H.,et al."Wave-Particle Interactions Associated With Io's Auroral Footprint: Evidence of Alfvén; Ion Cyclotron; and Whistler Modes".Geophysical Research Letters 47.22(2020).