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DOI | 10.1029/2018GL081544 |
Magnetic Signatures of a Plume at Europa During the Galileo E26 Flyby | |
Arnold, Hannes; Liuzzo, Lucas; Simon, Sven | |
2019-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:3页码:1149-1157 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We analyze the magnetic field perturbations observed near Jupiter's icy moon Europa by the Galileo spacecraft during the E26 flyby on 3 January 2000. In addition to the expected large-scale signatures of magnetic fieldline draping and induction, the E26 data set contains various prominent structures on length scales much smaller than the moon's radius. By applying a hybrid (kinetic ions and fluid electrons) model of Europa's interaction with the impinging magnetospheric plasma, we demonstrate that these fine structures in the magnetic field are consistent with Galileo's passage through a water vapor plume whose source was located in Europa's orbital trailing, southern hemisphere. Considering the large-scale asymmetries of Europa's global atmosphere alone is not sufficient to explain the observed magnetic signatures. Combined with the recent identification of a plume during the earlier E12 flyby of Galileo, our results provide strong evidence that plume activity at Europa was a persistent phenomenon during the Galileo era. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000462072800004 |
WOS关键词 | JOVIAN MAGNETOSPHERE ; SUBSURFACE OCEANS ; WATER-VAPOR ; CONSTRAINTS ; SATELLITES ; ATMOSPHERE ; THICKNESS ; CALLISTO ; FIELDS ; IO |
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/181330 |
专题 | 气候变化 |
作者单位 | Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA |
推荐引用方式 GB/T 7714 | Arnold, Hannes,Liuzzo, Lucas,Simon, Sven. Magnetic Signatures of a Plume at Europa During the Galileo E26 Flyby[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(3):1149-1157. |
APA | Arnold, Hannes,Liuzzo, Lucas,&Simon, Sven.(2019).Magnetic Signatures of a Plume at Europa During the Galileo E26 Flyby.GEOPHYSICAL RESEARCH LETTERS,46(3),1149-1157. |
MLA | Arnold, Hannes,et al."Magnetic Signatures of a Plume at Europa During the Galileo E26 Flyby".GEOPHYSICAL RESEARCH LETTERS 46.3(2019):1149-1157. |
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