Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China;
Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China;
Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 20030, China;
Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 20030, China;
Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China;
Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China;
Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China;
Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China;
Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China;
Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China;
Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China;
Key Laboratory of the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China;
Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 20030, China;