期刊
ADVANCES IN SPACE RESEARCH
卷 62, 期 8, 页码 2199-2212出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.asr.2017.08.009
关键词
Mars; Phobos; Surface charging
类别
资金
- NASA's Solar System Exploration Research Virtual Institute (SSERVI)
A passing coronal mass ejection (CME) will manifest a different response at an airless body compared to a magnetized planet. Specifically, because the regolith-rich surfaces of airless bodies are directly exposed to the variations in the plasma flow, the surfaces are found to undergo anomalous surface charging during the passing of CME fast plasma events. In this study, we model the surface charging expected at Phobos for nominal solar wind conditions and also those associated with disturbed solar wind conditions during the passage of a CME similar to that observed by MAVEN at Mars in early March 2015. We use an ambipolar diffusion model to examine the development of the trailing wake/void in the plasma flow behind Phobos and the formation of mini-wakes within obstruction regions like Stickney Crater. We also consider the roving of an astronaut in Stickney Crater for Phobos positioned near 10 h Local Time relative to Mars. We examine the plasma dissipation of the collected astronaut charge from contact electrification with the regolith. Published by Elsevier Ltd on behalf of COSPAR.
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