Dark Energy Survey Year 1 Results: galaxy mock catalogues for BAO

Abstract

Mock catalogues are a crucial tool in the analysis of galaxy surveys data, both for the accurate computation of covariance matrices, and for the optimisation of analysis methodology and validation of data sets. In this paper, we present a set of 1800 galaxy mock catalogues designed to match the Dark Energy Survey Year-1 BAO sample (Crocce et al. 2017) in abundance, observational volume, redshift distribution and uncertainty, and redshift dependent clustering. The simulated samples were built upon HALOGEN (Avila et al. 2015) halo catalogues, based on a $2LPT$ density field with an exponential bias. For each of them, a lightcone is constructed by the superposition of snapshots in the redshift range $0.45<z<1.4$. Uncertainties introduced by so-called photometric redshifts estimators were modelled with a \textit{double-skewed-Gaussian} curve fitted to the data. We also introduce a hybrid HOD-HAM model with two free parameters that are adjusted to achieve a galaxy bias evolution $b(z_{\mathrm{ph}})$ that matches the data at the 1-$\sigma$ level in the range $0.6<z_{\mathrm{ph}}<1.0$. We further analyse the galaxy mock catalogues and compare their clustering to the data using the angular correlation function $w(\theta )$, the comoving transverse separation clustering ${\xi }_{\mu <0.8}(s_{\perp })$ and the angular power spectrum $C_{\ell }$.

arXiv comment18 pages, 15 figures, 1 table, published in MNRAS

References in corpus (62)

• Planck 2015 results. XIII. Cosmological parameters
• The Structure of Cold Dark Matter Halos
• HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• The 6dF Galaxy Survey: Baryon Acoustic Oscillations and the Local Hubble Constant
• Baryonic Features in the Matter Transfer Function
• The 2dF Galaxy Redshift Survey: Power-spectrum analysis of the final dataset and cosmological implications
• Halo Models of Large Scale Structure
• Bayesian photometric redshift estimation
• The WiggleZ Dark Energy Survey: mapping the distance-redshift relation with baryon acoustic oscillations
• Halo occupation numbers and galaxy bias
• A Comprehensive Analysis of Uncertainties Affecting the Stellar Mass - Halo Mass Relation for 0<z<4
• Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Temperature Analysis
• MultiDark simulations: the story of dark matter halo concentrations and density profiles
• Power Spectrum Analysis of Three-Dimensional Redshift Surveys
• The Halo Occupation Distribution: Towards an Empirical Determination of the Relation Between Galaxies and Mass
• Theoretical Models of the Halo Occupation Distribution: Separating Central and Satellite Galaxies
• Why your model parameter confidences might be too optimistic -- unbiased estimation of the inverse covariance matrix
• Galaxy Clustering in the Completed SDSS Redshift Survey: The Dependence on Color and Luminosity
• Modeling Luminosity-Dependent Galaxy Clustering Through Cosmic Time
• MASTER of the CMB Anisotropy Power Spectrum: A Fast Method for Statistical Analysis of Large and Complex CMB Data Sets
• Spatial correlation function and pairwise velocity dispersion of galaxies: CDM models versus the Las Campanas Survey
• The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: First measurement of Baryon Acoustic Oscillations between redshift 0.8 and 2.2
• Solving Large Scale Structure in Ten Easy Steps with COLA
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: mock galaxy catalogues for the BOSS Final Data Release
• Galaxies in LCDM with Halo Abundance Matching: luminosity-velocity relation, baryonic mass-velocity relation, velocity function and clustering
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: a large sample of mock galaxy catalogues
• Improved forecasts for the baryon acoustic oscillations and cosmological distance scale
• The halo mass function through the cosmic ages
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: Observational systematics and baryon acoustic oscillations in the correlation function
• The MICE Grand Challenge Lightcone Simulation I: Dark matter clustering
• Faint Galaxies in deep ACS observations
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Modeling the clustering and halo occupation distribution of BOSS-CMASS galaxies in the Final Data Release
• The Effect of Covariance Estimator Error on Cosmological Parameter Constraints
• redMaGiC: Selecting Luminous Red Galaxies from the DES Science Verification Data
• Dark Energy Survey Year 1 Results: Redshift distributions of the weak lensing source galaxies
• EZmocks: extending the Zel'dovich approximation to generate mock galaxy catalogues with accurate clustering statistics
• The MICE Grand Challenge Lightcone Simulation III: Galaxy lensing mocks from all-sky lensing maps
• PTHalos: A fast method for generating mock galaxy distributions
• Mock galaxy catalogs using the quick particle mesh method
• Dark Energy Survey Year 1 Results: Measurement of the Baryon Acoustic Oscillation scale in the distribution of galaxies to redshift 1
• The MICE Grand Challenge Lightcone Simulation II: Halo and Galaxy catalogues
• The Bispectrum: From Theory to Observations
• An algorithm to build mock galaxy catalogues using MICE simulations
• A Halo Model of Galaxy Colors and Clustering in the SDSS
• The onion universe: all sky lightcone simulations in spherical shells
• An accurate tool for the fast generation of dark matter halo catalogs
• The clustering of galaxies at z~0.5 in the SDSS-III Data Release 9 BOSS-CMASS sample: a test for the LCDM cosmology
• DNF - Galaxy photometric redshift by Directional Neighbourhood Fitting
• A New Method to Correct for Fiber Collisions in Galaxy Two-Point Statistics
• Modeling the angular correlation function and its full covariance in Photometric Galaxy Surveys
• Estimating Cosmological Parameter Covariance
• nIFTy Cosmology: Galaxy/halo mock catalogue comparison project on clustering statistics
• Shrinkage Estimation of the Power Spectrum Covariance Matrix
• HALOGEN: A tool for fast generation of mock halo catalogues
• Clustering properties of $g$-selected galaxies at $z\sim 0.8$
• CUTE solutions for two-point correlation functions from large cosmological datasets
• Fast generation of ensembles of cosmological N-body simulations via mode-resampling
• Precision matrix expansion - efficient use of numerical simulations in estimating errors on cosmological parameters
• Dark Energy Survey Year 1 Results: Galaxy Sample for BAO Measurement
• Optimized Clustering Estimators for BAO Measurements Accounting for Significant Redshift Uncertainty
• BAO from angular clustering: optimization and mitigation of theoretical systematics

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• Dark Energy Survey Year 1 Results: Measurement of the Baryon Acoustic Oscillation scale in the distribution of galaxies to redshift 1
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the emission line galaxy sample from the anisotropic power spectrum between redshift 0.6 and 1.1
• Dark Energy Survey Year 3 Results: A 2.7% measurement of Baryon Acoustic Oscillation distance scale at redshift 0.835
• Cosmological Constraints from Multiple Probes in the Dark Energy Survey
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• Simulating Groups and the IntraGroup Medium: The Surprisingly Complex and Rich Middle Ground Between Clusters and Galaxies
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: exploring the Halo Occupation Distribution model for Emission Line Galaxies
• Comparing approximate methods for mock catalogues and covariance matrices II: Power spectrum multipoles
• Comparing approximate methods for mock catalogues and covariance matrices III: Bispectrum
• Disconnected pseudo-$C_{\ell }$ covariances for projected large-scale structure data
• A volumetric deep Convolutional Neural Network for simulation of mock dark matter halo catalogues
• Dark Energy Survey: A 2.1% measurement of the angular Baryonic Acoustic Oscillation scale at redshift $z_{\mathrm{eff}}$=0.85 from the final dataset
• The Redshift-Space Momentum Power Spectrum I: Optimal Estimation From Peculiar Velocity Surveys
• Dark Energy Survey Year 1 Results: Galaxy Sample for BAO Measurement
• Dark Energy Survey Year 1 Results: Measurement of the Galaxy Angular Power Spectrum
• BAO from angular clustering: optimization and mitigation of theoretical systematics
• DES Y1 results: Splitting growth and geometry to test $\Lambda$CDM
• Cosmological Inference from Galaxy-Clustering Power Spectrum: Gaussianization and Covariance Decomposition
• PNG-UNITsims: Halo clustering response to primordial non-Gaussianities as a function of mass
• Dark Energy Survey Year 3 Results: Measurement of the Baryon Acoustic Oscillations with Three-dimensional Clustering
• Clustering with general photo-$z$ uncertainties: Application to Baryon Acoustic Oscillations
• Fitting covariance matrix models to simulations
• Dynamical description of a quintom cosmological model nonminimally coupled with gravity
• KiDS+VIKING+GAMA: Halo occupation distributions and correlations of satellite numbers with a new halo model of the galaxy-matter bispectrum for galaxy-galaxy-galaxy lensing
• Validating galaxy clustering models with Fixed & Paired and Matched-ICs simulations: application to Primordial Non-Gaussianities
• Optimizing Redshift Distribution Inference through Joint Self-Calibration and Clustering-Redshift Synergy
• On the tomographic cluster clustering as a cosmological probe
• Dark Energy Survey Year 3 Results: Galaxy mock catalogs for BAO analysis
• Dark Energy Survey: DESI-Independent Angular BAO Measurement
• A lightcone catalogue from the Millennium-XXL simulation: improved spatial interpolation and colour distributions for the DESI BGS
• Solving small-scale clustering problems in approximate lightcone mocks