Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL089267 |
A new framework to explain changes in Io’s footprint tail electron fluxes | |
J. R. Szalay; F. Allegrini; F. Bagenal; S. J. Bolton; B. Bonfond; G. Clark; J. E. P. Connerney; R. W. Ebert; V. Hue; D. J. McComas; J. Saur; A. H. Sulaiman; R. J. Wilson | |
2020-09-09 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | We analyze precipitating electron fluxes connected to 18 crossings of Io’s footprint tail aurora, over altitudes of 0.15 to 1.1 Jovian radii (RJ). The strength of precipitating electron fluxes is dominantly organized by “Io‐Alfvén tail distance”, the angle along Io’s orbit between Io and an Alfvén wave trajectory connected to the tail aurora. These fluxes best fit an exponential as a function of down‐tail extent with an e‐folding distance of 22°. The acceleration region altitude likely increases down‐tail, and the majority of parallel electron acceleration sustaining the tail aurora occurs above 1 RJ in altitude. We do not find a correlation between the tail fluxes and the power of the initial Alfvén wave launched from Io. Finally, Juno has likely transited Io’s Main Alfvén Wing fluxtube, observing a characteristically distinct signature with precipitating electron fluxes ~500 mW/m2 and an acceleration region extending as low as 0.4 RJ in altitude. |
领域 | 气候变化 |
URL | 查看原文 |
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/294004 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | J. R. Szalay,F. Allegrini,F. Bagenal,等. A new framework to explain changes in Io’s footprint tail electron fluxes[J]. Geophysical Research Letters,2020. |
APA | J. R. Szalay.,F. Allegrini.,F. Bagenal.,S. J. Bolton.,B. Bonfond.,...&R. J. Wilson.(2020).A new framework to explain changes in Io’s footprint tail electron fluxes.Geophysical Research Letters. |
MLA | J. R. Szalay,et al."A new framework to explain changes in Io’s footprint tail electron fluxes".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论