1. School of Astronomy and Space Science, Nanjing University , Nanjing 210023 , People’s Republic of China
2. Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education , Nanjing 210023 , People’s Republic of China
3. Department of Physics, Institute for Computational Cosmology, Durham University , South Road, Durham DH1 3LE , UK
4. School of Astronomy and Space Science, University of Chinese Academy of Sciences , Beijing 100049 , People’s Republic of China
5. National Astronomical Observatories, Chinese Academy of Sciences , 20A Datun Road, Chaoyang District, Beijing 100012 , People’s Republic of China
6. Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University , Beijing 102206 , People’s Republic of China
7. Department of Space, Earth and Environment, Chalmers University of Technology , Onsala Space Observatory, SE-439 92 Onsala , Sweden
8. European Southern Observatory , Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago de Chile , Chile
9. Shanghai Astronomical Observatory, Chinese Academy of Science , 80 Nandan Road, Shanghai 200030 , People’s Republic of China
10. Guangxi Key Laboratory for Relativistic Astrophysics, Department of Physics, Guangxi University , Nanning 530004, PR China
11. Department of Astronomy, Tsinghua University , Beijing 100084 , China