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Fig. 2.

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Cosmological parameter constraints for a non-flat viscous universe with constant viscosity (m = 0). Top panel: PPS, Base 2, CC, and R22 datasets. Bottom panel: PPS + DESI, Base 3, CC, and R22 datasets. The contours show 2D confidence regions (68% and 95% CL) and their 1D marginalized posterior distributions.
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