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DOI | 10.1002/2017GL076901 |
Diverse Electron and Ion Acceleration Characteristics Observed Over Jupiter's Main Aurora | |
Mauk, B. H.1; Haggerty, D. K.1; Paranicas, C.1; Clark, G.1; Kollmann, P.1; Rymer, A. M.1; Peachey, J. M.1; Bolton, S. J.2; Levin, S. M.3; Adriani, A.4; Allegrini, F.2,5; Bagenal, F.6; Bonfond, B.7; Connerney, J. E. P.8; Ebert, R. W.2; Gladstone, G. R.2; Kurth, W. S.9; McComas, D. J.2,10; Ranquist, D.6; Valek, P.2 | |
2018-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:3页码:1277-1285 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Italy; Belgium |
英文摘要 | Two new Juno-observed particle features of Jupiter's main aurora demonstrate substantial diversity of processes generating Jupiter's mysterious auroral emissions. It was previously speculated that sometimes-observed potential-driven aurora (up to 400 kV) can turn into broadband stochastic acceleration (dominating at Jupiter) by means of instability. Here direct evidence for such a process is revealed with a mono-energetic electron inverted-V rising in energy to 200 keV, transforming into a region of broadband acceleration with downward energy fluxes tripling to 3,000 mW/m(2), and then transforming back into a mono-energetic structure ramping down from 200 keV. But a second feature of interest observed nearby is unlikely to have operated in the same way. Here a downward accelerated proton inverted-V, with inferred potentials to 300-400kV, occurred simultaneously with downward accelerated broadband electrons with downward energy fluxes as high as any observed (similar to 3,000 mW/m(2)). This latter feature has no known precedent with Earth auroral observations. |
英文关键词 | Jupiter aurora Juno energetic particles magnetosphere |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426161800010 |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/25957 |
专题 | 气候变化 |
作者单位 | 1.Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA; 2.Southwest Res Inst, San Antonio, TX USA; 3.Jet Prop Lab, Pasadena, CA USA; 4.Inst Nazl Astrofis, Inst Astofis & Planetol Spaziali, Rome, Italy; 5.Univ Texas San Antonio, Phys & Astron Dept, San Antonio, TX USA; 6.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA; 7.Univ Liege, Space Sci Technol & Astrophys Res Inst, LPAP, Liege, Belgium; 8.NASA, Goddard Space Flight Ctr, Greenbelt, MD USA; 9.Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA; 10.Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA |
推荐引用方式 GB/T 7714 | Mauk, B. H.,Haggerty, D. K.,Paranicas, C.,et al. Diverse Electron and Ion Acceleration Characteristics Observed Over Jupiter's Main Aurora[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(3):1277-1285. |
APA | Mauk, B. H..,Haggerty, D. K..,Paranicas, C..,Clark, G..,Kollmann, P..,...&Valek, P..(2018).Diverse Electron and Ion Acceleration Characteristics Observed Over Jupiter's Main Aurora.GEOPHYSICAL RESEARCH LETTERS,45(3),1277-1285. |
MLA | Mauk, B. H.,et al."Diverse Electron and Ion Acceleration Characteristics Observed Over Jupiter's Main Aurora".GEOPHYSICAL RESEARCH LETTERS 45.3(2018):1277-1285. |
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