Effects of the interplanetary magnetic field clock angle on the shape of bow shock
文献类型：期刊论文
| 作者 | Wang JiangYan; Huang ZhaoHui; Wang Chi; Liu ZiQian |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2015 |
| 卷号 | 58期号:7页码:1228-1234 |
| 关键词 | IMF clock angle bow shock MHD simulations |
| ISSN号 | 1674-7313 |
| 通讯作者 | Wang, JY (reprint author), Chinese Acad Sci, State Key Lab Space Weather, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China. |
| 英文摘要 | Using the global magnetohydrodynamics (MHD) simulation model, we investigated the effects of the interplanetary magnetic field (IMF) clock angle on the shape of bow shock, including its rotational asymmetry and subsolar point. For general northward IMF (z component B-z > 0), the rotational symmetry of the bow shock is broken by the effects of fast magnetosonic Mach number (M-ms), and the cross-sectional line of the bow shock is an ellipse with the semi-major axis along the direction perpendicular to the IMF. The ratio or D-value between semi-major and semi-minor axis can be used to illustrate the extent of asymmetry of the bow shock. On the basis of the multiple parameters fitting, we obtain the changing relationship of both semi-axes with the clock angle and the distance away from the Earth. For general southward IMF (B-z < 0), the cross sectional line of the bow shock is highly asymmetrical under the multiple effects of magnetopause and M-ms. The effects of IMF clock angle on subsolar point depend mainly on the changing subsolar point of magnetopause as an obstacle. The distance of subsolar point of bow shock from the Earth increases with the increasing IMF clock angle for B-z > 0, and decreases with the increasing IMF clock angle for B-z < 0. |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/4621]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Wang JiangYan,Huang ZhaoHui,Wang Chi,et al. Effects of the interplanetary magnetic field clock angle on the shape of bow shock[J]. SCIENCE CHINA-EARTH SCIENCES,2015,58(7):1228-1234. |
| APA | Wang JiangYan,Huang ZhaoHui,Wang Chi,&Liu ZiQian.(2015).Effects of the interplanetary magnetic field clock angle on the shape of bow shock.SCIENCE CHINA-EARTH SCIENCES,58(7),1228-1234. |
| MLA | Wang JiangYan,et al."Effects of the interplanetary magnetic field clock angle on the shape of bow shock".SCIENCE CHINA-EARTH SCIENCES 58.7(2015):1228-1234. |
入库方式： OAI收割
来源：国家空间科学中心
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