Cosmological constraints from large-scale structure growth rate measurements

Abstract

We compile a list of $14$ independent measurements of large-scale structure growth rate between redshifts $0.067\le z\le 0.8$ and use this to place constraints on model parameters of constant and time-evolving general-relativistic dark energy cosmologies. With the assumption that gravity is well-modeled by general relativity, we discover that growth-rate data provide restrictive cosmological parameter constraints. In combination with type Ia supernova apparent magnitude versus redshift data and Hubble parameter measurements, the growth rate data are consistent with the standard spatially-flat $\Lambda$CDM model, as well as with mildly evolving dark energy density cosmological models.

8 pages, 1 table and 3 figures

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• Falsifying $\Lambda$CDM: Model-independent tests of the concordance model with eBOSS DR14Q and Pantheon
• An evaluation of cosmological models from expansion and growth of structure measurements
• The Linear Growth of Structure in the R_h=ct Universe
• Inflation in a closed universe
• Planck 2015 constraints on spatially-flat dynamical dark energy models
• Galaxy clustering, CMB and supernova data constraints on $\varphi$CDM model with massive neutrinos
• Does information entropy play a role in the expansion and acceleration of the Universe?
• Observational Constraints on Dynamical Dark Energy Models
• Growth Rate in the Dynamical Dark Energy Models
• Testing the $R_{\mathrm{h}}=ct$ Universe Jointly with the Redshift-dependent Expansion rate and Angular-diameter and Luminosity Distances
• Classifying the behavior of noncanonical quintessence
• Reconstructing thawing quintessence with multiple datasets
• Implications of Dynamical Dark Energy in the expansion of the Universe and the Structure Formation
• A closer look at the cosmological implications of the $\Lambda$HDE model
• Perspectives for studying the dark energy at z>2 with galaxy surveys