| Effects of the interplanetary magnetic field clock angle on the shape of bow shock | |
| Wang JiangYan; Huang ZhaoHui; Wang Chi; Liu ZiQian; Wang, JY (reprint author), Chinese Acad Sci, State Key Lab Space Weather, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China. | |
| Department | 空间科学部 |
| Source Publication | SCIENCE CHINA-EARTH SCIENCES
 |
| 2015 | |
| Volume | 58Issue:7Pages:1228-1234 |
| ISSN | 1674-7313 |
| Language | 英语 |
| Keyword | Imf Clock Angle Bow Shock Mhd Simulations |
| Abstract | 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. |
| Indexed By | SCI ; EI |
| Document Type | 期刊论文 |
| Identifier | http://ir.nssc.ac.cn/handle/122/4621 |
| Collection | 空间科学部 |
| Corresponding Author | Wang, JY (reprint author), Chinese Acad Sci, State Key Lab Space Weather, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China. |
| Recommended Citation 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,&Wang, JY .(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. |
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| 20155871228.pdf（925KB） | 开放获取 | CC BY-NC-SA | Application Full Text | |||
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