Current situation and prospect of solar magnetic field exploration
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摘要: 磁场是当今太阳物理最重要的观测量,与太阳磁场观测研究相关的科学问题是当今太阳物理、日地物理的前沿和热点。文中简要回顾了太阳磁场观测的发展历程、现状以及面临的困难,并结合国内在太阳磁场观测研究中取得的成就,探讨了国内在未来的竞争中可能的突破口。基于空间探测的优势,笔者认为深空探测将在有关太阳磁场的重大科学难题的突破方面发挥决定性作用。Abstract: Magnetic field is the most important observed parameter in modern solar physics. The observation and research related to the solar magnetic field are always the front and hot topic in solar and space physics. The development history, current status, and the difficulties in the measurement of solar magnetic field were briefly reviewed. The progress made by Chinese solar community was outlined too. Depending on these reviews, what Chinese solar magnetic field should do in the future international competition was discussed. Based on the advantages of space observation, it is believed that deep-space exploration will play a decisive role in the breakthrough of major scientific problems related to the solar magnetic field.
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Key words:
- sun /
- solar magnetic activity /
- measurement of solar magnetic field /
- space exploration
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图 2 SMFT观测的太阳活动区9077的光球矢量磁场演化系列图[6]
Figure 2. An evolution series of photospheric magnetogram of NOAA 9077 obtained by SMFT
图 5 SDO/HMI获得的活动区11158的光球矢量磁图以及由矢量磁场数据演化出的图像[9]。(a)活动区11158的纵向磁图;(b) (a)图黄色方框区域中的矢量磁图;(c) 基于矢量磁场数据,由非线性无力场外推方法得到的磁力线结构;(d) 基于矢量磁场数据得到的活动区11158的电流密度图像
Figure 5. Photospheric vector magnetograms of NOAA 11158 obtained by SDO/HMI and images obtained by the vector magnetic field[9]. (a) Longitudinal magnetogram of NOAA 11158; (b) Vector magnetogram of the region marked by the yellow rectangle in Fig.(a); (c) Magnetic field lines induced by NLFFF model based on observed vector magnetic filed; (d) Current density image of NOAA 11158 obtained by the vector magnetic field
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