Lijiang 2.4-meter Telescope and its instruments

作者：Chuanjun Wang, Jin-Ming Bai, Yufeng Fan, J. Mao, Liang Chang, Yu-Xin Xin, Jujia Zhang, Bao-Li Lun, Jian-Guo Wang, Xiliang Zhang, Mei Ying, Kai-Xing Lu, Xiaoli Wang, Kaifan Ji, Dingrong Xiong, Xiaoguang Yu, Xu Ding, Kai Ye, Lifeng Xing, Weimin Yi, Liang Xu, Xiang-Ming Zheng, Yuan-Jie Feng, Shou-Sheng He, Xueli Wang, Zhong Liu, Dong Chen, Jun Xu, Songnian Qin, Ruilong Zhang, Huisong Tan, Zhi Li, Ke Lou, Jian Li, Weiwei Liu · 发表于：Research in Astronomy and Astrophysics · 年份：2019 · DOI：10.1088/1674-4527/19/10/149 · 被引用次数：105 · 研究领域：Stellar, planetary, and galactic studies、Adaptive optics and wavefront sensing、Astronomy and Astrophysical Research

Abstract The Lijiang 2.4-meter Telescope (LJT), the largest common-purpose optical telescope in China, has been available to the worldwide astronomical community since 2008. It is located at the Gaomeigu site, Lijiang Observatory (LJO), in the southwest of China. The site has very good observational conditions. During its 10-year operation, several instruments have been equipped on the LJT. Astronomers can perform both photometric and spectral observations. The main scientific goals of LJT include recording photometric and spectral evolution of supernovae, reverberation mapping of active galactic nuclei, investigating the physical properties of binary stars and near-earth objects (comets and asteroids), and identification of exoplanets and all kinds of transients. Until now, the masses of 41 high accretion rate black holes have been measured, and more than 168 supernovae have been identified by the LJT. More than 190 papers related to the LJT have been published. In this paper, the general observation conditions of the Gaomeigu site is introduced at first. Then, the structure of the LJT is described in detail, including the optical, mechanical, motion and control system. The specification of all the instruments and some detailed parameters of the YFOSC is also presented. Finally, some important scientific results and future expectations are summarized.