SIMBAD references

2016MNRAS.462..681M - Mon. Not. R. Astron. Soc., 462, 681-688 (2016/October-2)

Cosmology and astrophysics from relaxed galaxy clusters - V. Consistency with cold dark matter structure formation.


Abstract (from CDS):

This is the fifth in a series of papers studying the astrophysics and cosmology of massive, dynamically relaxed galaxy clusters. Our sample comprises 40 clusters identified as being dynamically relaxed and hot in m = -0.16 ± 0.07, in agreement with CDM predictions. For this relaxed sample, the relation is consistent with a constant as a function of redshift (power-law slope with 1 + z of κζ = -0.17 ± 0.26), with an intrinsic scatter of σ_ln c_ = 0.16 ± 0.03. We investigate the shape of cluster mass profiles over the radial range probed by the data (typically ∼50 kpc-1 Mpc), and test for departures from the simple Navarro-Frenk-White (β = 0.22 ± 0.07, while in the Einasto case we constrain the average shape parameter to be α = 0.29 ± 0.04 with an intrinsic scatter of σα = 0.12 ± 0.04. Our results are thus consistent with the simple NFW model on average, but we clearly detect the presence of intrinsic, cluster-to-cluster scatter about the average.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: clusters: general - dark matter - X-rays: galaxies: clusters - X-rays: galaxies: clusters

Simbad objects: 40

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