SIMBAD references

2019MNRAS.486..440D - Mon. Not. R. Astron. Soc., 486, 440-448 (2019/June-2)

An estimation of the local growth rate from Cosmicflows peculiar velocities.

DUPUY A., COURTOIS H.M. and KUBIK B.

Abstract (from CDS):

This article explores three usual estimators, noted as v12 of the pairwise velocity, ψ1 and ψ2 of the observed two-point galaxy peculiar velocity correlation functions. These estimators are tested on mock samples of Cosmicflows-3 data set (Tully, Courtois & Sorce), derived from a numerical cosmological simulation, and also on a number of constrained realizations of this data set. Observational measurements errors and cosmic variance are taken into consideration in the study. The result is a local measurement of fσ8 = 0.43(± 0.03)obs(± 0.11)cosmic out to z = 0.05, in support of a ΛCDM cosmology.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): cosmological parameters - large-scale structure of Universe - cosmology: observations

Simbad objects: 1

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