气候变化领域集成服务门户(CCPortal): An Active Plume Eruption on Europa During Galileo Flyby E26 as Indicated by Energetic Proton Depletions

CCPortal

DOI	10.1029/2020GL087806
	An Active Plume Eruption on Europa During Galileo Flyby E26 as Indicated by Energetic Proton Depletions
	Huybrighs H.L.F.; Roussos E.; Blöcker A.; Krupp N.; Futaana Y.; Barabash S.; Hadid L.Z.; Holmberg M.K.G.; Lomax O.; Witasse O.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:10
英文摘要	Strong depletions of energetic protons (115–244 keV) were observed during Galileo flyby E26 of Europa. We simulate the flux of energetic protons using a Monte Carlo particle backtracing code and show that energetic proton depletions during E26 are reproduced by taking into account the perturbations of the electromagnetic fields calculated by magnetohydrodynamic (MHD) simulations and charge exchange with a global atmosphere and plume. A depletion feature occurring shortly after closest approach is driven by plume associated charge exchange, or a combination with plume associated field perturbations. We therefore conclude, with a new method and independent data set, that Galileo could have encountered a plume during E26. © 2020. The Authors.
英文关键词	Charge transfer; Electromagnetic fields; Magnetohydrodynamics; Backtracing; Charge exchanges; Data set; Energetic protons; Field perturbations; GALILEO; Magnetohydrodynamic simulations; Monte Carlo particles; Monte Carlo methods; atmospheric plume; electromagnetic field; Europa; Galileo (spacecraft); magnetohydrodynamics; Monte Carlo analysis; simulation
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/170340
作者单位	ESA/ESTEC, Noordwijk, Netherlands; Max Planck Institute for Solar System Research, Göttingen, Germany; KTH, Royal Institute of Technology, Stockholm, Sweden; IRF, Swedish Institute of Space Physics, Kiruna, Sweden; LPP, CNRS, École polytechnique, Sorbonne Université, Observatoire de Paris, Université Paris-Saclay, PSL Research University, Paris, France
推荐引用方式 GB/T 7714	Huybrighs H.L.F.,Roussos E.,Blöcker A.,et al. An Active Plume Eruption on Europa During Galileo Flyby E26 as Indicated by Energetic Proton Depletions[J],2020,47(10).
APA	Huybrighs H.L.F..,Roussos E..,Blöcker A..,Krupp N..,Futaana Y..,...&Witasse O..(2020).An Active Plume Eruption on Europa During Galileo Flyby E26 as Indicated by Energetic Proton Depletions.Geophysical Research Letters,47(10).
MLA	Huybrighs H.L.F.,et al."An Active Plume Eruption on Europa During Galileo Flyby E26 as Indicated by Energetic Proton Depletions".Geophysical Research Letters 47.10(2020).