CosmicGrowth Simulations—Cosmological simulations for structure growth studies

@article{Jing2018CosmicGrowthSS,
  title={CosmicGrowth Simulations—Cosmological simulations for structure growth studies},
  author={Yipeng Jing},
  journal={Science China Physics, Mechanics \& Astronomy},
  year={2018},
  volume={62},
  pages={1-5}
}
  • Y. Jing
  • Published 18 July 2018
  • Physics
  • Science China Physics, Mechanics & Astronomy
I present a large set of high resolution simulations, called CosmicGrowth Simulations, which were generated with either 8.6 billion or 29 billion particles. As for the nominal cosmological model that can match nearly all observations on cosmological scales, I have adopted a flat Cold Dark Matter (CDM) model with a cosmological constant Λ (ACDM). The model parameters have been taken either from the latest result of the WMAP satellite (WMAP ACDM) or from the first year's result of the Planck… 

Detection of a Cross-correlation between Cosmic Microwave Background Lensing and Low-density Points

Low-density points (LDPs), obtained by removing high-density regions of observed galaxies, can trace the large-scale structures (LSSs) of the universe. In particular, it offers an intriguing

The Copula of the Cosmological Matter Density Field is Non-Gaussian

TLDR
This work highlights the departure from Gaussianity in the copula density and at the two-point level, and quantifies its impact in the predicted nth (n ≥ 2) order correlation functions.

Measuring the integrated Sachs–Wolfe effect from the low-density regions of the universe

The integrated Sachs-Wolfe (ISW) effect is caused by the decay of cosmological gravitational potential, and is therefore a unique probe of dark energy. However, its robust detection is still

Expansion series of the pairwise velocity generating function and its implications on redshift space distortion modeling

The pairwise velocity generating function G has a deep connection with both the pairwise velocity probability distribution function and modeling of redshift space distortion (RSD). Its implementation

A Possible Explanation of Vanishing Halo Velocity Bias

Recently, Chen et al. accurately determined the volume weighted halo velocity bias in simulations and found that the deviation of velocity bias from unity is much weaker than the peak model

Photometric Objects around Cosmic Webs (PAC) Delineated in a Spectroscopic Survey. I. Methods

We provide a method for estimating the projected density distribution n¯2wp(rp) of photometric objects around spectroscopic objects in a spectroscopic survey. This quantity describes the distribution

Constructing the Emission-line Galaxy–Host Halo Connection through Auto and Cross Correlations

We investigate the [O ii] emission-line galaxy (ELG)-host halo connection via auto and cross correlations, and propose a concise and effective method to populate ELGs in dark matter halos without

Accurate Modeling of the Projected Galaxy Clustering in Photometric Surveys. I. Tests with Mock Catalogs

We develop a novel method to explore the galaxy–halo connection using the galaxy imaging surveys by modeling the projected two-point correlation function measured from the galaxies with reasonable

A natural boundary of dark matter haloes revealed around the minimum bias and maximum infall locations

We explore the boundary of dark matter haloes through their bias and velocity profiles. Using cosmological $N$-body simulations, we show that the bias profile exhibits a ubiquitous trough that can be

Toward accurate measurement of property-dependent galaxy clustering: I. Comparison of the Vmax method and the “shuffled” method

Galaxy clustering provides insightful clues to our understanding of galaxy formation and evolution, as well as the universe. The redshift assignment for the random sample is one of the key steps to

References

SHOWING 1-10 OF 37 REFERENCES

ACCURATE UNIVERSAL MODELS FOR THE MASS ACCRETION HISTORIES AND CONCENTRATIONS OF DARK MATTER HALOS

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

Planck 2013 results. XVI. Cosmological parameters

This paper presents the first cosmological results based on Planck measurements of the cosmic microwave background (CMB) temperature and lensing-potential power spectra. We find that the Planck

A recipe for galaxy formation

We present a detailed prescription for how galaxy formation can be modelled in hierarchical theories of structure formation. Our model incorporates the formation and merging of dark matter halos, the

REVISING THE HALOFIT MODEL FOR THE NONLINEAR MATTER POWER SPECTRUM

Based on a suite of state-of-the-art high-resolution N-body simulations, we revisit the so-called halofit model as an accurate fitting formula for the nonlinear matter power spectrum. While the

Semianalytical Model of Galaxy Formation with High-Resolution N-Body Simulations

We model the galaxy formation in a series of high-resolution N-body simulations using the semianalytical approach. Unlike many earlier investigations based on semianalytical models, we make use of

A Universal Density Profile from Hierarchical Clustering

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,

Triaxial Modeling of Halo Density Profiles with High-Resolution N-Body Simulations

We present a detailed nonspherical modeling of dark matter halos on the basis of a combined analysis of high-resolution halo simulations (12 halos with N ~ 106 particles within their virial radius)

NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE (WMAP) OBSERVATIONS: COSMOLOGICAL PARAMETER RESULTS

We present cosmological parameter constraints based on the final nine-year Wilkinson Microwave Anisotropy Probe (WMAP) data, in conjunction with a number of additional cosmological data sets. The

Concentrations of Dark Halos from Their Assembly Histories

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

FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE OBSERVATIONS: COSMOLOGICAL INTERPRETATION

The Wilkinson Microwave Anisotropy Probe (WMAP) 5-year data provide stringent limits on deviations from the minimal, six-parameter Λ cold dark matter model. We report these limits and use them to