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Removing the Impact of Correlated PSF Uncertainties in Weak Lensing

  • Authors: Tianhuan Lu, Jun Zhang, Fuyu Dong, Yingke Li, Dezi Liu, Liping Fu, Guoliang Li, and Zuhui Fan

2018 The Astrophysical Journal 858 122.

  • Provider: AAS Journals

Caption: Figure 1.

Distribution of the residual PSF power spectra in a small region of the w2m0m0 field of CFHTLenS. The PSF model is constructed with the first-order chipwise polynomial fitting. The residuals are calculated at the positions of the stars in the “reference” group.

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