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Concept of the solar ring mission: An overview

Science China Technological Sciences volume 63, pages 1699–1713 (2020)Cite this article

Abstract

The concept of the Solar Ring mission was gradually formed from L5/L4 mission concept, and the proposal of its pre-phase study was funded by the National Natural Science Foundation of China in November 2018 and then by the Strategic Priority Program of Chinese Academy of Sciences in space sciences in May 2019. Solar Ring mission will be the first attempt to routinely monitor and study the Sun and inner heliosphere from a full 360-degree perspective in the ecliptic plane. The current preliminary design of the Solar Ring mission is to deploy six spacecraft, grouped in three pairs, on a sub-AU orbit around the Sun. The two spacecraft in each group are separated by about 30° and every two groups by about 120°. This configuration with necessary science payloads will allow us to establish three unprecedented capabilities: (1) determine the photospheric vector magnetic field with unambiguity, (2) provide 360-degree maps of the Sun and the inner heliosphere routinely, and (3) resolve the solar wind structures at multiple scales and multiple longitudes. With these capabilities, the Solar Ring mission aims to address the origin of solar cycle, the origin of solar eruptions, the origin of solar wind structures and the origin of severe space weather events. The successful accomplishment of the mission will advance our understanding of the star and the space environment that hold our life and enhance our capability of expanding the next new territory of human.

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Authors and Affiliations

  1. CAS Key Laboratory of Geospace Environment, School of Earth and Space Sciences, University of Science and Technology of China (USTC), Hefei, 230026, China

    YuMing Wang, ChengLong Shen, JingNan Guo, QuanHao Zhang, Kai Liu, XiaoLei Li, Rui Liu & Shui Wang

  2. CAS Center for Excellence in Comparative Planetology, USTC, Hefei, 230026, China

    YuMing Wang, ChengLong Shen, JingNan Guo, QuanHao Zhang, Kai Liu, XiaoLei Li, Rui Liu & Shui Wang

  3. Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, 210034, China

    HaiSheng Ji

  4. CAS Key Lab of Microsatellite, Innovation Academy for Microsatellites, Chinese Academy of Sciences, Shanghai, 201203, China

    YaMin Wang

  5. Shanghai Engineering Center for Microsatellites, Shanghai, 201203, China

    YaMin Wang

  6. Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai, 264209, China

    LiDong Xia & ZhengHua Huang

  7. Univeristy of Chinese Academy of Sciences, Beijing, 100049, China

    JingXiu Wang

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This work was supported by the Strategic Priority Program of CAS (Grant Nos. XDB41000000 and XDA15017300), the National Natural Science Foundation of China (NSFC) (Grant No. 41842037). WANG YuMing, SHEN ChengLong, GUO JingNan, ZHANG QuanHao, LIU Kai, LI XiaoLei, LIU Rui and WANG Shui are also supported by the CAS Key Research Program of Frontier Sciences (Grant No. QYZDB-SSW-DQC015), and the NSFC (Grant Nos. 41774178, 41761134088, 41750110481 and 11925302), JI HaiSheng by the NSFC (Grant No. 11790302), and Xia LiDong and Huang ZhengHua by the NSFC (Grant No. 41627806). We thank Dr. J. Zhao from Stanford University for reading the manuscript and providing suggestions.

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Wang, Y., Ji, H., Wang, Y. et al. Concept of the solar ring mission: An overview. Sci. China Technol. Sci. 63, 1699–1713 (2020). https://doi.org/10.1007/s11431-020-1603-2

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  • space mission concept
  • solar cycle
  • solar eruptions
  • solar wind
  • space weather