南极冰穹A的天文台址测量进展OA北大核心CSTPCD

More and more observational evidence has demonstrated that the Dome A region where Kunlun Station is located has the best ground-based astronomical observation conditions in optical,infrared,and terahertz wave bands.It has excellent free-atmosphere seeing,extremely low precipitable water vapor,a very dark sky background at night,and months of continuous observation time during polar nights.Through a summary of work in the past seventeen years,this article focuses on the comprehensive site survey work at Dome A and presents the measurement results as well as the latest progress.