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题名: The Influence of IMF B-y on the Bow Shock: Observation Result
作者: Wang, M.; Lu, J. Y.; Kabin, K.; Yuan, H. Z.; Liu, Z. -Q.; Zhao, J. S.; Li, G.
作者部门: 空间科学部
通讯作者: Lu, JY (reprint author), Nanjing Univ Informat Sci & Technol, Inst Space Weather, Sch Math & Stat, Nanjing, Jiangsu, Peoples R China.
关键词: IMF B-y ; bow shock ; elongation
刊名: JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
ISSN号: 2169-9380
出版日期: 2018
卷号: 123, 期号:3, 页码:1915-1926
收录类别: SCI
项目资助者: National Natural Science Foundation of China [41604141, 41574158, U1631107] ; Natural Science Foundation of JiangSu Province [BK20160952] ; NUIST Talent Foundation ; Jiangsu Shuangchuang Program
英文摘要: In this study we use the bow shock crossings contained in the Space Physics Data Facility database, collected by four spacecraft (IMP 8, Geotail, Magion-4, and Cluster1) to analyze the effect of the interplanetary magnetic field (IMF) B-y component on the bow shock position and shape. Although the IMF B-z component is usually considered much more geoeffective than B-y, we find that the dayside bow shock is more responsive to the eastward component of the IMF than the north-south one. We believe that the explanation lies in the changes that the B-z component induces on the magnetopause location and shape, which largely compensate the corresponding changes in the dayside bow shock location. In the tail, we find that the bow shock cross section is elongated roughly in the direction perpendicular to the IMF direction, which agrees with earlier modeling studies.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.nssc.ac.cn/handle/122/6310
Appears in Collections:空间科学部_期刊论文

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