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WFST Astrometric Calibration. I. Modeling Global Geometric Distortion with Zernike Polynomials

  • Authors: Chao Yang, Min Fang, Xian Zhong Zheng, Guoliang Li, Binyang Liu, Zheng Lou, Zhen Wan, Miaomiao Zhang, Tian-Rui Sun, Lulu Fan, Xiaoling Zhang, Xu Kong, Yongquan Xue, Wen Zhao, Bin Li, Wentao Luo, Feng Li, Wei Liu, Jian Wang, Hongfei Zhang, Hao Liu, Qinfeng Zhu, Hairen Wang, Dazhi Yao

Chao Yang et al 2026 The Astronomical Journal 171 .

  • Provider: AAS Journals

Caption: Figure 10.

Simulated stellar positional offset maps. Panel (a) illustrates the positional offsets caused by random noise and atmospheric turbulence. Panel (b) shows the small-scale optical distortion component introduced in the simulation. Panel (c) presents the total positional offset map resulting from all simulated effects.

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