气候变化领域集成服务门户(CCPortal): Proton Outflow Associated With Jupiter's Auroral Processes

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DOI	10.1029/2020GL091627
	Proton Outflow Associated With Jupiter's Auroral Processes
	Szalay J.R.; Allegrini F.; Bagenal F.; Bolton S.J.; Clark G.; Connerney J.E.P.; Ebert R.W.; Ergun R.E.; Mauk B.; McComas D.J.; Valek P.; Wilson R.J.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:1
英文摘要	Field-aligned proton beams are a systematic and identifiable feature associated with Jupiter's auroral emissions, transporting 3 ± 2 kg s−1 away from Jupiter's ionosphere. This mass loss occurs at all longitudes sampled by Juno around the southern auroral oval, while the northern hemisphere exhibits upward proton beams predominantly on one portion in System III, near the auroral kink region. These beams are associated with upward inverted-V structures indicative of quasi-static magnetic field-aligned parallel potentials. A lack of bidirectionality indicates these proton populations are pitch-angle and/or energy scattered and incorporated into the magnetospheric charged particle environment. This mechanism is a significant, and potentially dominant, source of protons in Jupiter's middle and outer magnetosphere. If Jupiter's ionosphere is the primary source for protons in the inner magnetosphere, they are likely sourced equatorward of the main emissions and at energies <100 eV. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Charged particles; Ionosphere; Ionospheric measurement; Proton beams; Auroral emission; Auroral process; Bidirectionality; Inner magnetosphere; Northern Hemispheres; Primary sources; Quasi-static magnetic fields; V structures; Magnetosphere; aurora; emission; ionosphere; Jupiter; magnetosphere; Northern Hemisphere
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/169224
作者单位	Department of Astrophysical Sciences, Princeton University, PrincetonNJ, 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; Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States; Applied Physics Laboratory, The Johns Hopkins University, Laurel, MD, United States; Space Research Corporation, Annapolis, MD, United States; Goddard Space Flight Center, Greenbelt, MD, United States
推荐引用方式 GB/T 7714	Szalay J.R.,Allegrini F.,Bagenal F.,et al. Proton Outflow Associated With Jupiter's Auroral Processes[J],2021,48(1).
APA	Szalay J.R..,Allegrini F..,Bagenal F..,Bolton S.J..,Clark G..,...&Wilson R.J..(2021).Proton Outflow Associated With Jupiter's Auroral Processes.Geophysical Research Letters,48(1).
MLA	Szalay J.R.,et al."Proton Outflow Associated With Jupiter's Auroral Processes".Geophysical Research Letters 48.1(2021).