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The halo mass function through the cosmic ages

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TLDR
In this paper, the authors investigate how the halo mass function evolves with redshift, based on a suite of very large cosmological N-body simulations, using both the Friends-of-Friends (FOF) and Spherical Overdensity (SO) halofinding methods to compare the mass function derived using these commonly used halo definitions.
Abstract
In this paper we investigate how the halo mass function evolves with redshift, based on a suite of very large (with N_p = 3072^3 - 6000^3 particles) cosmological N-body simulations Our halo catalogue data spans a redshift range of z = 0-30, allowing us to probe the mass function from the dark ages to the present We utilise both the Friends-of-Friends (FOF) and Spherical Overdensity (SO) halofinding methods to directly compare the mass function derived using these commonly used halo definitions The mass function from SO haloes exhibits a clear evolution with redshift, especially during the recent era of dark energy dominance (z 20, the SO algorithm finds a ~50-80% lower collapsed fraction in high mass haloes than does the FOF algorithm, due in part to the significant over-linking effects known to affect the FOF method

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Planck 2015 results. XXIV. Cosmology from Sunyaev-Zeldovich cluster counts.

TL;DR: In this article, the authors present constraints on cosmological parameters using number counts as a function of redshift for a sub-sample of 189 galaxy clusters from the Planck SZ (PSZ) catalogue.
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Planck 2013 results. XX. Cosmology from Sunyaev-Zeldovich cluster counts

Peter A. R. Ade, +285 more
TL;DR: In this article, the authors presented cluster counts and corresponding cosmological constraints from the Planck full mission data set and extended their analysis to the two-dimensional distribution in redshift and signal-to-noise.
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Cosmological simulations of galaxy formation

TL;DR: Cosmological simulations of galaxy formation have been instrumental in advancing our understanding of structure and galaxy formation in the Universe as discussed by the authors, and have also proven useful to study alternative cosmological models and their impact on the galaxy population.
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HMFcalc: An online tool for calculating dark matter halo mass functions

TL;DR: A new web application for calculating the dark matter halo mass function (HMF) is presented—the frontend HMFcalc and the engine hmf, designed to be flexible, efficient and easy to use.
References
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Journal ArticleDOI

A Universal Density Profile from Hierarchical Clustering

TL;DR: In this article, the authors used high-resolution N-body simulations to study the equilibrium density profiles of dark matter halos in hierarchically clustering universes, and they found that all such profiles have the same shape, independent of the halo mass, the initial density fluctuation spectrum, and the values of the cosmological parameters.
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The Cosmological simulation code GADGET-2

TL;DR: GADGET-2 as mentioned in this paper is a massively parallel tree-SPH code, capable of following a collisionless fluid with the N-body method, and an ideal gas by means of smoothed particle hydrodynamics.
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Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation

TL;DR: In this paper, the authors show that the tensor-to-scalar ratio r 1 is disfavored regardless of r. They provide a set of "WMAP distance priors, to test a variety of dark energy models.
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