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Alternative TitleAn Observation-Based Model of Solar Wind Background
向长青; 冯学尚; 范全林; 姚久胜; 北京8701信箱
Source Publication空间科学学报
Keyword太阳风模型 太阳观测 太阳风观测
Other AbstractPhotospheric magnetic field measurements and coronal polarized brightness observations are used as constrains to develop a single-fluid solar wind background model, which includes proton density, bulk velocity and magnetic field. Proton temperature will be dealed with in further studies.The synoptic maps of K-corona polarized Brightness(pB) at 1.36 solar radii observed by MKIII in High Altitude Observator (HAO) are applied to derive corona density according to the solar wind density model constructed by Guhathakurta in 1996. In order to determine the global magnetic field,the synoptic maps of photospheric magnetic field in Wilcox Solar Observatory (WSO) are adopted to be the bottom boundary condition of the model of horizontal current and current sheet (HCCS) established by Zhao in 1994.Researches on observations during Ulysses'first and second polar fly-byes made by Phillips in 1995 and McComas in 2003 demonstrate that the solar wind momentum flux density scaled to 1 AU is almost invariant except that it is slightly small in the latitude of士100-300,thus the solar wind speed can be derived from this conclusion and the obtained density data. The model is applied to study the solar wind background in Carrington Rotation (CR) 1918 and the results are roughly consistent with the observations in solar minimum.However, the area of high density and slow speed is slightly larger than that observed and thus the density model needs to be further improved.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
向长青,冯学尚,范全林,等. 一个基于观测的太阳风背景模型[J]. 空间科学学报,2006,26(3):161-166.
APA 向长青,冯学尚,范全林,姚久胜,&北京8701信箱.(2006).一个基于观测的太阳风背景模型.空间科学学报,26(3),161-166.
MLA 向长青,et al."一个基于观测的太阳风背景模型".空间科学学报 26.3(2006):161-166.
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