Validating the clustering predictions of empirical models with the FLAMINGO simulations

Abstract

Context. Mock galaxy catalogues are essential for correctly interpreting current and future generations of galaxy surveys. Despite their significance in galaxy formation and cosmology, little to no work has been done to validate the predictions of these mocks for high-order clustering statistics. Aims. We compare the predicting power of the latest generation of empirical models used in the creation of mock galaxy catalogues: a 13-parameter Halo Occupation Distribution (HOD) and an extension of the SubHalo Abundance Matching technique (SHAMe). Methods. We build GalaxyEmu-Planck, an emulator that makes precise predictions for the two-point correlation function, galaxy-galaxy lensing (restricted to distances greater than 1 $h^{-1}\mathrm{Mpc}$ to avoid baryonic effects), and other high-order statistics resulting from the evaluation of SHAMe and HOD models. Results. We evaluate the precision of GalaxyEmu-Planck using two galaxy samples extracted from the FLAMINGO hydrodynamical simulation that mimic the properties of DESI-BGS and BOSS galaxies, finding that the emulator reproduces all the predicted statistics precisely. The HOD showed comparable performance when fitting galaxy clustering and galaxy-galaxy lensing. In contrast, the SHAMe model showed better predictions for higher-order statistics, especially regarding the galaxy assembly bias. We also tested the performance of the models after removing some of their extensions, finding that we can withdraw two of the HOD parameters without a loss of performance. Conclusions. The results of this paper validate the current generation of empirical models as a way to reproduce galaxy clustering, galaxy-galaxy lensing and other high-order statistics. The excellent performance of the SHAMe model with a small number of free parameters suggests that it is a valid method to extract cosmological constraints from galaxy clustering.

arXiv comment22 pages, 12 figures, submitted to A&A. Comments welcomed!

References in corpus (81)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• emcee: The MCMC Hammer
• Simulating the joint evolution of quasars, galaxies and their large-scale distribution
• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Populating a cluster of galaxies - I. Results at z=0
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• The Baryon Oscillation Spectroscopic Survey of SDSS-III
• First results from the IllustrisTNG simulations: matter and galaxy clustering
• UniverseMachine: The Correlation between Galaxy Growth and Dark Matter Halo Assembly from z=0-10
• Simba: Cosmological Simulations with Black Hole Growth and Feedback
• Halo occupation numbers and galaxy bias
• 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
• Dancing in the dark: galactic properties trace spin swings along the cosmic web
• Cosmological simulations of the growth of supermassive black holes and feedback from active galactic nuclei: method and tests
• The Luminosity and Color Dependence of the Galaxy Correlation Function
• Galaxy Clustering in the Completed SDSS Redshift Survey: The Dependence on Color and Luminosity
• Modeling Luminosity-Dependent Galaxy Clustering Through Cosmic Time
• Galaxy Clustering in Early SDSS Redshift Data
• Galaxy Evolution from Halo Occupation Distribution Modeling of DEEP2 and SDSS Galaxy Clustering
• The Nature of Galaxy Bias and Clustering
• Scaling relations for galaxy clusters in the Millennium-XXL simulation
• Spatial correlation function and pairwise velocity dispersion of galaxies: CDM models versus the Las Campanas Survey
• EMERGE - An empirical model for the formation of galaxies since $z\sim 10$
• The Halo Occupation Distribution and the Physics of Galaxy Formation
• The Connection between Galaxies and Dark Matter Structures in the Local Universe
• Halo assembly bias and its effects on galaxy clustering
• The Non-Parametric Model for Linking Galaxy Luminosity with Halo/Subhalo Mass
• Semi-Analytic Galaxy Evolution (SAGE): Model Calibration and Basic Results
• DESI Bright Galaxy Survey: Final Target Selection, Design, and Validation
• The FLAMINGO project: cosmological hydrodynamical simulations for large-scale structure and galaxy cluster surveys
• Shark: introducing an open source, free and flexible semi-analytic model of galaxy formation
• Lensing is Low: Cosmology, Galaxy Formation, or New Physics?
• The BACCO Simulation Project: Exploiting the full power of large-scale structure for cosmology
• Cosmological $N$-body simulations with suppressed variance
• Cosmological Constraints from a Combination of Galaxy Clustering and Lensing -- III. Application to SDSS Data
• The BAHAMAS project: the CMB--large-scale structure tension and the roles of massive neutrinos and galaxy formation
• Introducing Decorated HODs: modeling assembly bias in the galaxy-halo connection
• Subhalo abundance matching and assembly bias in the EAGLE simulation
• The MillenniumTNG Project: The hydrodynamical full physics simulation and a first look at its galaxy clusters
• The Weak Lensing Signal and the Clustering of BOSS Galaxies II: Astrophysical and Cosmological Constraints
• Gaussian covariance matrices for anisotropic galaxy clustering measurements
• The Impact of Assembly Bias on the Galaxy Content of Dark Matter Halos
• The Concentration Dependence of the Galaxy-Halo Connection: Modeling Assembly Bias with Abundance Matching
• The Aemulus Project III: Emulation of the Galaxy Correlation Function
• Forward Modeling of Large-Scale Structure: An open-source approach with Halotools
• Redshift-Space Clustering of SDSS Galaxies --- Luminosity Dependence, Halo Occupation Distribution, and Velocity Bias
• Halo assembly bias and the tidal anisotropy of the local halo environment
• L-GALAXIES 2020: Spatially resolved cold gas phases, star formation and chemical enrichment in galactic discs
• Velocity Bias from the Small Scale Clustering of SDSS-III BOSS Galaxies
• Nearest Neighbor distributions: new statistical measures for cosmological clustering
• Modelling galaxy clustering: halo occupation distribution versus subhalo matching
• SWIFT: A modern highly-parallel gravity and smoothed particle hydrodynamics solver for astrophysical and cosmological applications
• The impact of baryonic processes on the two-point correlation functions of galaxies, subhaloes and matter
• Hunting for Galaxies and Halos in simulations with VELOCIraptor
• AbacusHOD: A highly efficient extended multi-tracer HOD framework and its application to BOSS and eBOSS data
• Sphenix: Smoothed Particle Hydrodynamics for the next generation of galaxy formation simulations
• Dissecting and Modelling Galaxy Assembly Bias
• How robust are predictions of galaxy clustering?
• The Evolution of Assembly Bias
• A flexible modelling of galaxy assembly bias
• The Aemulus Project V: Cosmological constraint from small-scale clustering of BOSS galaxies
• A flexible subhalo abundance matching model for galaxy clustering in redshift space
• Extensions to models of the galaxy-halo connection
• Simultaneous modelling of matter power spectrum and bispectrum in the presence of baryons
• The BACCO simulation project: biased tracers in real space
• Exploring the squeezed three-point galaxy correlation function with generalized halo occupation distribution models
• The impact of galaxy formation on satellite kinematics and redshift-space distortions
• 3\%-accurate predictions for the clustering of dark matter, haloes and subhaloes, over a wide range of cosmologies and scales
• The Bacco Simulation Project: Bacco Hybrid Lagrangian Bias Expansion Model in Redshift Space
• Connecting and dissecting galaxies' angular momenta and neutral gas in a hierarchical universe: cue DARK SAGE
• Massive Dark Matter Halos around Bright Isolated Galaxies in the 2dFGRS
• The galaxy - dark matter halo connection: which galaxy properties are correlated with the host halo mass?
• Does the Galaxy-Halo Connection Vary with Environment?
• The galaxy formation origin of the lensing is low problem
• Extensions to the halo occupation distribution model for more accurate clustering predictions
• The MillenniumTNG Project: Inferring cosmology from galaxy clustering with accelerated N-body scaling and subhalo abundance matching
• The evolution of the galaxy content of dark matter haloes
• The cosmological dependence of halo and galaxy assembly bias
• SHAM through the lens of a hydrodynamical simulation
• The FLAMINGO project: Baryonic impact on weak gravitational lensing convergence peak counts

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