What geometrical factors determine the in situ solar wind speed?
文献类型：期刊论文
| 作者 | Li Bo; Chen Yao; Xia LiDong |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2012 |
| 卷号 | 57期号:12页码:1409-1414 |
| 关键词 | solar wind magnetic field Magnetohydrodynamic waves space weather |
| ISSN号 | 1001-6538 |
| 通讯作者 | Li, B (reprint author), Shandong Univ Weihai, Sch Space Sci & Phys, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Peoples R China. |
| 中文摘要 | At present it remains to address why the fast solar wind is fast and the slow wind is slow. Recently we have shown that the field line curvature may substantially influence the wind speed v, thereby offering an explanation for the Arge et al. finding that v depends on more than just the flow tube expansion factor. Here we show by extensive numerical examples that the correlation between v and field line curvature is valid for rather general base boundary conditions and for rather general heating functions. Furthermore, the effect of field line curvature is even more pronounced when the proton-alpha particle speed difference is examined. We suggest that any solar wind model has to take into account the field line shape for any quantitative analysis to be made. |
| 英文摘要 | At present it remains to address why the fast solar wind is fast and the slow wind is slow. Recently we have shown that the field line curvature may substantially influence the wind speed v, thereby offering an explanation for the Arge et al. finding that v depends on more than just the flow tube expansion factor. Here we show by extensive numerical examples that the correlation between v and field line curvature is valid for rather general base boundary conditions and for rather general heating functions. Furthermore, the effect of field line curvature is even more pronounced when the proton-alpha particle speed difference is examined. We suggest that any solar wind model has to take into account the field line shape for any quantitative analysis to be made. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [40904047, 40825014, 40890162, 40974105]; Specialized Research Fund for State Key Laboratories |
| 语种 | 英语 |
| 公开日期 | 2014-12-15 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/3236]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Li Bo,Chen Yao,Xia LiDong. What geometrical factors determine the in situ solar wind speed?[J]. CHINESE SCIENCE BULLETIN,2012,57(12):1409-1414. |
| APA | Li Bo,Chen Yao,&Xia LiDong.(2012).What geometrical factors determine the in situ solar wind speed?.CHINESE SCIENCE BULLETIN,57(12),1409-1414. |
| MLA | Li Bo,et al."What geometrical factors determine the in situ solar wind speed?".CHINESE SCIENCE BULLETIN 57.12(2012):1409-1414. |
入库方式： OAI收割
来源：国家空间科学中心
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