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题名: Shape and position of Earth's bow shock near-lunar orbit based on ARTEMIS data
作者: Liu Ji; Shi QuanQi; Tian AnMin; Lu JianYong; Wu Hao; Wang Ming; Fu SuiYan; Yang YuChen; Zong QiuGang; Zhang Jiang; Feng YongYong; Pu ZuYin
作者部门: 空间科学部
通讯作者: Shi, QQ ; Tian, AM (reprint author), Shandong Univ, Sch Space Sci & Phys, Weihai 264209, Peoples R China.
关键词: Bow shock ; Interplanetary magnetic field (IMF) ; Magnetosphere ; Solar wind
刊名: SCIENCE CHINA-EARTH SCIENCES
ISSN号: 1674-7313
出版日期: 2016
卷号: 59, 期号:8, 页码:1700-1706
收录类别: SCI ; EI
项目资助者: National Natural Science Foundation of China [41322031, 41404131, 41574157, 41031065, 41304129] ; Specialized Research Fund for State Key Laboratories ; Shandong Natural Science Foundation [2013BSE27132, BS2013HZ001]
英文摘要: Earth's bow shock is the result of interaction between the supersonic solar wind and Earth's magnetopause. However, data limitations mean the model of the shape and position of the bow shock are based largely on near-Earth satellite data. The model of the bow shock in the distant magnetotail and other factors that affect the bow shock, such as the interplanetary magnetic field ( IMF) B-y, remain unclear. Here, based on the bow shock crossings of ARTEMIS from January 2011 to January 2015, new coefficients of the tail-flaring angle alpha of the Chao model ( one of the most accurate models currently available) were obtained by fitting data from the middle-distance magnetotail ( near-lunar orbit, geocentric distance -20R(E)>X>-50R(E)). In addition, the effects of the IMF B-y on the flaring angle alpha were analyzed. Our results showed that: ( 1) the new fitting coefficients of the Chao model in the middle-distance magnetotail are more consistent with the observed results; ( 2) the tail-flaring angle alpha of the bow shock increases as the absolute value of the IMF B-y increases. Moreover, positive IMF B-y has a greater effect than negative IMF B-y on flaring angle. These results provide a reference for bow shock modeling that includes the IMF B-y.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/5600
Appears in Collections:空间科学部_期刊论文

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