# A universal model for halo concentrations

@article{Diemer2014AUM,
title={A universal model for halo concentrations},
author={Benedikt Diemer and Andrey V. Kravtsov},
journal={arXiv: Cosmology and Nongalactic Astrophysics},
year={2014}
}
• Published 17 July 2014
• Physics
• arXiv: Cosmology and Nongalactic Astrophysics
We present a numerical study of dark matter halo concentrations in $\Lambda$CDM and self-similar cosmologies. We show that the relation between concentration, $c$, and peak height, $\nu$, exhibits the smallest deviations from universality if halo masses are defined with respect to the critical density of the universe. These deviations can be explained by the residual dependence of concentration on the local slope of the matter power spectrum, $n$, which affects both the normalization and shape…
235 Citations

## Figures and Tables from this paper

An Accurate Physical Model for Halo Concentrations
• Physics
The Astrophysical Journal
• 2019
The relation between halo mass, M, and concentration, c, is a critical component in our understanding of the structure of dark matter halos. While numerous models for this relation have been
Halo Profiles and the Concentration–Mass Relation for a ΛCDM Universe
• Physics
• 2018
Profiles of dark matter-dominated halos at the group and cluster scales play an important role in modern cosmology. Using results from two very large cosmological $N$-body simulations, which increase
The connection between halo concentrations and assembly histories: a probe of gravity?
• Geology
Monthly Notices of the Royal Astronomical Society
• 2019
We use two high-resolution N-body simulations, one assuming general relativity (GR) and the other the Hu–Sawicki form of f(R) gravity with $\vert \bar{f}_{\mathrm{ R}} \vert = 10^{-6}$, to
Halo Concentrations and the New Baseline X-Ray Luminosity–Temperature and Mass Relations of Galaxy Clusters
• Physics
The Astrophysical Journal
• 2019
The standard self-similar model of galaxy cluster formation predicts that the X-ray luminosity-temperature ($L_X$-$T_X$) relation of galaxy clusters should have been $L_X\propto T_X^2$ in absence of
Mass--concentration relation of clusters of galaxies from CFHTLenS
Based on weak lensing data from the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS), in this paper we study the mass-concentration ($M$-$c$) relation for $\sim 200$ redMaPPer clusters in the
A New Interpretation of the Mass–Temperature Relation and Mass Calibration of Galaxy Clusters Based on the Fundamental Plane
• Physics
The Astrophysical Journal
• 2018
Observations and numerical simulations have shown that the relation between the mass scaled with the critical density of the universe and the X-ray temperature of galaxy clusters is approximately
The Uchuu simulations: Data Release 1 and dark matter halo concentrations
• Physics
• 2020
We introduce the Uchuu suite of large high-resolution cosmological $N$-body simulations. The largest simulation, named Uchuu, consists of 2.1 trillion ($12800^3$) dark matter particles in a box of
Strong orientation dependence of surface mass density profiles of dark haloes at large scales
• Physics
• 2018
We study the dependence of surface mass density profiles, which can be directly measured by weak gravitational lensing, on the orientation of haloes with respect to the line-of-sight direction, using
Column density profiles of multiphase gaseous haloes
• Physics
• 2016
We analyze circumgalactic medium (CGM) in a suite of high-resolution cosmological re-simulations of a Milky-Way size galaxy and show that CGM properties are quite sensitive to details of star
Halo assembly bias from Separate Universe simulations
• Physics
• 2017
We present a calibration of halo assembly bias using the Separate Universe technique. Specifically, we measure the response of halo abundances at fixed mass and concentration to the presence of an

## References

SHOWING 1-10 OF 73 REFERENCES
The mass–concentration–redshift relation of cold dark matter haloes
• Physics
• 2014
We use the Millennium Simulation series to investigate the mass and redshift dependence of the concentration of equilibrium cold dark matter (CDM) halos. We extend earlier work on the relation
The Power Spectrum Dependence of Dark Matter Halo Concentrations
• Physics
• 2001
High-resolution N-body simulations are used to examine the power spectrum dependence of the concentration of galaxy-sized dark matter halos. It is found that dark halo concentrations depend on the
The statistics of lambda CDM Halo Concentrations
• Physics
• 2007
We use the Millennium Simulation (MS) to study the statistics of Λ cold dark matter (ΛCDM) halo concentrations at z= 0. Our results confirm that the average halo concentration declines monotonically
Numerical study of halo concentrations in dark-energy cosmologies
• Physics
• 2004
We study the concentration parameters, their mass dependence and redshift evolution, of dark-matter halos in different dark-energy cosmologies with constant and time-variable equation of state, and
Mass and redshift dependence of dark halo structure
• Physics
• 2003
Using a combination of N-body simulations with different resolutions, we study in detail how the concentrations of cold dark matter halos depend on halo mass at different redshifts. We confirm that
ACCURATE UNIVERSAL MODELS FOR THE MASS ACCRETION HISTORIES AND CONCENTRATIONS OF DARK MATTER HALOS
• Physics
• 2009
A large amount of observations have constrained cosmological parameters and the initial density fluctuation spectrum to a very high accuracy. However, cosmological parameters change with time and the
Concentrations of Dark Halos from Their Assembly Histories
• Physics
• 2002
We study the relation between the density profiles of dark matter halos and their mass assembly histories using a statistical sample of halos in a high-resolution N-body simulation of the ΛCDM
Profiles of dark haloes: evolution, scatter and environment
• Physics
• 2001
We study dark-matter halo density profiles in a high-resolution N-body simulation of aCDM cosmology. Our statistical sample contains �5000 haloes in the range 10 11 10 14 h −1 M⊙ and the resolution
A Universal Density Profile from Hierarchical Clustering
• Physics
• 1997
We use high-resolution N-body simulations to study the equilibrium density profiles of dark matter halos in hierarchically clustering universes. We find that all such profiles have the same shape,
The Density Profile of Equilibrium and Nonequilibrium Dark Matter Halos
We study the diversity of the density pro—les of dark matter halos based on a large set of high- resolution cosmological simulations of 2563 particles. The cosmological models include four scale-free