Kavli Affiliate: Eli Rykoff
| Summary:
We show that, in flat $Λ$CDM, low-redshift structure probes — cluster abundances, 3$times$2-point analyses, and full-shape clustering — are mutually consistent, jointly delivering precise constraints on $σ_8$ and $Ω_rm m$ that agree with geometrical datasets (CMB+BAO+SN). In $w_0w_a$CDM, adding clusters to the geometry dataset reduces the evidence for evolving dark energy while relaxing the $H_0$ tension, suggesting a $Λ$CDM evolution of the late-time Universe and a sound horizon that differs from its standard value.
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