Tracking Back the Solar Wind to Its Photospheric Footpoints from Wind Observations - A Statistical Study

	Tracking Back the Solar Wind to Its Photospheric Footpoints from Wind Observations - A Statistical Study
	Huang, Chong 1; Yan, Yihua1 ; Li, Gang 1,2,3; Deng, Yuanyong1 ; Tan, Baolin1
刊名	SOLAR PHYSICS
	2014-08-01
卷号	289 期号:8 页码:3109-3119
关键词	Solar wind Magnetic fields Current sheets Supergranulation
英文摘要	It is of great importance to track the solar wind back to its photospheric source region and identify the related current sheets; this will provide key information for investigating the origin and predictions of the solar wind. We report a statistical study relating the photospheric footpoint motion and in-situ observation of current sheets in the solar wind. We used the potential force-free source-surface (PFSS) model and the daily synoptic charts to trace the solar wind back from 1 AU, as observed by the Wind spacecraft, to the solar surface. As the footpoints move along the solar surface we obtain a time series of the jump times between different points. These jumps can be within a cell and between adjacent cells. We obtained the distribution of the jump times and the distribution for a subset of the jump times in which only jumps between adjacent cells were counted. For both cases, the distributions clearly show two populations. These distributions are compared with the distribution of in-situ current sheets reported in an earlier work of Miao, Peng, and Li (Ann. Geophys. 29, 237, 2011). Its implications on the origin of the current sheets are discussed.
收录类别	SCI
语种	英语
WOS记录号	WOS:000336334900016
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/6366]
专题	国家天文台_太阳物理研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China 2.Univ Alabama, Dept Phys, Huntsville, AL 35899 USA 3.Univ Alabama, CSPAR, Huntsville, AL 35899 USA
推荐引用方式 GB/T 7714	Huang, Chong,Yan, Yihua,Li, Gang,et al. Tracking Back the Solar Wind to Its Photospheric Footpoints from Wind Observations - A Statistical Study[J]. SOLAR PHYSICS,2014,289(8):3109-3119.
APA	Huang, Chong,Yan, Yihua,Li, Gang,Deng, Yuanyong,&Tan, Baolin.(2014).Tracking Back the Solar Wind to Its Photospheric Footpoints from Wind Observations - A Statistical Study.SOLAR PHYSICS,289(8),3109-3119.
MLA	Huang, Chong,et al."Tracking Back the Solar Wind to Its Photospheric Footpoints from Wind Observations - A Statistical Study".SOLAR PHYSICS 289.8(2014):3109-3119.