DES supernova data alone give Omega_M = 0.352 +/- 0.017 in flat LambdaCDM and confirm acceleration at >5 sigma, with dark energy consistent with a cosmological constant to within ~2 sigma when combined with other probes.
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Simulations of Euclid cluster data demonstrate that combining number counts and clustering improves the figure of merit by over 300 percent, with photo-z uncertainties broadening posteriors by 20-30 percent and smaller-scale clustering adding useful information.
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The Dark Energy Survey: Cosmology Results With ~1500 New High-redshift Type Ia Supernovae Using The Full 5-year Dataset
DES supernova data alone give Omega_M = 0.352 +/- 0.017 in flat LambdaCDM and confirm acceleration at >5 sigma, with dark energy consistent with a cosmological constant to within ~2 sigma when combined with other probes.
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Euclid: Exploring observational systematics in cluster cosmology -- a comprehensive analysis of cluster counts and clustering
Simulations of Euclid cluster data demonstrate that combining number counts and clustering improves the figure of merit by over 300 percent, with photo-z uncertainties broadening posteriors by 20-30 percent and smaller-scale clustering adding useful information.