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Merlin: Fast and flexible 3x2pt cosmology with simulation-based inference

Wernersson, Alexandra et al.
arXiv (All) · Papers
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cosmology-and-nongalactic-astrophysics
We present Merlin, a simulation-based inference (SBI) pipeline to perform cosmological analyses of 3x2pt summary statistics: cosmic shear, galaxy clustering and the cross-correlation power spectra. Our approach combines Marginal Neural Ratio Estimation (MNRE) with 3x2pt angular power spectra predict
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