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Breaking the Mass-sheet Degeneracy in Time-delay Cosmography with Lensed and Unlensed Type Ia Supernovae

  • Authors: Xiaolei Li, Kai Liao, Xuheng Ding

Xiaolei Li et al 2026 The Astrophysical Journal 1000 .

  • Provider: AAS Journals

Caption: Figure 1.

The time-delay distance (DΔt) and angular-diameter distance to the lens (Dd), along with the magnification ratios of the lensed images. The results are derived from a power-law lens model in LENSTRONOMY, with the incorporation of an intrinsic MSD parameter.

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