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Progress of site survey for large solar telescopes in western China

  • Yu Liu (a1), Tengfei Song (a1), Xuefei Zhang (a1), Shunqing Liu (a1), Mingyu Zhao (a1), Zhanjun Tian (a1), Yuhu Miao (a1), Hongbo Li (a1), Jing Huang (a1), Baoyu Su (a1), Yongyin Lu (a1), Xiaobo Li (a1) and Qiwu Song (a2)...

Abstract

Excellent sites are necessary for developing and installing ground-based large telescopes. For very-high-resolution solar observations, it had been unclear whether there exist good candidate sites in the west areas in China, including the Tibetan Plateau and the Pamirs Plateau. The project of solar site survey for the next-generation large solar telescopes, i.e., the Chinese Giant Solar Telescope (CGST) and the large coronagraph, has been launched since 2011. Based on the close collaboration among Chinese solar society and the scientists from NSO, HAO and other institutes, we have successfully developed the standard instruments for solar site survey and applied them to more than 50 different sites distributed in Xinjiang, Tibet, Qinghai, Sichuan, Yunnan and Ningxia provinces. We have built two long-term monitoring sites in Tibet and the large Shangri-La to take systematic site data. Clear evidence, including the key parameters of seeing factor, sky brightness and water vapor content, has indicated that a few potential sites in the large Tibetan areas should obtain the excellent astronomical conditions for our purpose to develop CGST and large coronagraph. We introduce the fresh site survey results in this report.

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References

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Progress of site survey for large solar telescopes in western China

  • Yu Liu (a1), Tengfei Song (a1), Xuefei Zhang (a1), Shunqing Liu (a1), Mingyu Zhao (a1), Zhanjun Tian (a1), Yuhu Miao (a1), Hongbo Li (a1), Jing Huang (a1), Baoyu Su (a1), Yongyin Lu (a1), Xiaobo Li (a1) and Qiwu Song (a2)...

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