Research

Our research involved in stellar chemical abundances analysis, search for metal-poor stars, extra-solar planets, structure and evolution of the Milky Way, laboratory astrophysics, deep Stromgren-Crawford sky survey and so on.

Research

Analyzing stellar chemical abundances is the basic method to investigate the evolution of stars, the Galaxy and even the universe. We observe high-resolution spectra of stars to determine their chemical abundances, and combine the information of age and kinematics to study different stellar populations in the Galaxy, no only to explore the origin, structure and evolution of the Galaxy, but also to understand the nucleosynthesis theory, and to verify cosmological models.

Laboratory astrophysics is a new interdiscipline. Through simulating high-energy and high-density environment under the astrophysical conditions in the laboratory, we could carry out researches in the field of radiation opacity, state equation of stellar interior substance, jet and shock wave, etc. With a number of international large-scale experimental facilities, laboratory astrophysics has achieved great development and progress.

Research on extra-solar planets is one of the hot topics in astronomy during recent years. We search for planets and brown dwarfs around the late G, K-type giants with the 2.16m telescope and high-resolution spectrograph in Xinglong, study the difference in chemical abundances and other aspects between stars with planetary systems and normal ones, so as to further understand the formation and evolution of planets.

We are going to perform Deep Stromgren-Crawford (SC) All Sky Survey with the 1m telescope on Nanshan, Xinjiang. SC photometric system can provide stellar parameters comparable with high-resolution spectrocopy.