期刊
GEOPHYSICAL RESEARCH LETTERS
卷 44, 期 10, 页码 4401-4409出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2016GL072187
关键词
-
资金
- Jovian Auroral Distributions Experiment (JADE) on NASA's Juno mission
- STFC [ST/P000541/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/P000541/1] Funding Source: researchfish
We report on plasma and magnetic field observations from Juno's Jovian Auroral Distributions Experiment and Magnetic Field Investigation at 18 magnetopause crossings when the spacecraft was located at similar to 6 h magnetic local time and 73-114 Jovian radii from Jupiter. Several crossings showed evidence of plasma energization, accelerated ion flows, and large magnetic shear angles, each representing a signature of magnetic reconnection. These signatures were observed for times when the magnetosphere was in both compressed and expanded states. We compared the flow change magnitudes to a simplified Walen relation and found similar to 60% of the events to be 110% or less of the predicted values. Close examination of two magnetopause encounters revealed characteristics of a rotational discontinuity and an open magnetopause. These observations provide compelling evidence that magnetic reconnection can occur at Jupiter's dawn magnetopause and should be incorporated into theories of solar wind coupling and outer magnetosphere dynamics at Jupiter.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据