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Chandra Cluster Cosmology Project III: Cosmological Parameter Constraints

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Figure

Figure 1. Estimated mass functions for our cluster samples computed for the Ω M = 0.25, Ω Λ = 0.75, h = 0.72 cosmology
Figure 2. Illustration of sensitivity of the cluster mass function to the cosmological model
Figure 3. Constraints on the σ 8 and Ω M parameters in a flat ΛCDM cosmology from the total (both low- and high-redshift) cluster sample
Figure 4. Comparison with other σ 8 measurements. The solid region is our 68% CL region reproduced from Figure 3 (this and all other confidence regions correspond to Δχ 2 = 1, see footnote 13
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