5 papers
Research on the Flat Field Measurement Method of Coronagraph
Yulong Feng, Xuefei Zhang, Hongfei Liang +4
The solar corona has an extremely low density, and its brightness is only about one millionth of that of the photosphere. High-dynamic-range imaging of its faint structure is there…
Observational Technological Innovations and Future Development of the Lijiang Coronagraph
Xuefei Zhang, Yu Liu, Tengfei Song +5
As a core ground-based coronal observation facility in China's low-latitude high-altitude regions, the Lijiang Coronagraph leverages the natural advantages of Lijiang Astronomical…
Forward Modeling of Dust-Induced Stray Light in Ground-Based Coronagraphs: A Dual-Path Monitoring Approach for High-Precision Inner Corona Observations
Xiande Liu, Xuefei Zhang, Yu Liu +5
High-precision ground-based observations of the inner corona (1.05-2.0 R_sun) are fundamentally constrained by instrumental stray light, particularly the additive background from d…
Atmospheric turbulence profiling with the Multistar Turbulence Monitor
Weisen Huang, Bin Ma, Tengfei Song +5
Accurate characterization of atmospheric optical turbulence is essential for evaluating astronomical sites and optimizing adaptive optics systems. The Multistar Turbulence Monitor…
Some Questions and Challenges in Measurements of Solar Magnetic Fields
Hongqi Zhang, Jiangtao Su, Xiaofan Wang +4
Huairou Solar Observing Station of the National Astronomical Observatories of the Chinese Academy of Sciences has been in operation since 1987. Successful observations of the solar…