Elucidating Galaxy Assembly Bias in SDSS

Abstract

We investigate the level of galaxy assembly bias in the Sloan Digital Sky Survey (SDSS) main galaxy sample using ELUCID, a state-of-the-art constrained simulation that accurately reconstructed the initial density perturbations within the SDSS volume. On top of the ELUCID haloes, we develop an extended HOD model that includes the assembly bias of central and satellite galaxies, parameterized as ${\mathcal{Q}}_{\mathrm{cen}}$ and ${\mathcal{Q}}_{\mathrm{sat}}$, respectively, to predict a suite of one- and two-point observables. In particular, our fiducial constraint employs the probability distribution of the galaxy number counts measured on $8\mathrm{Mpc}{h}^{-1}$ scales $N_8^g$ and the projected cross-correlation functions of quintiles of galaxies selected by $N_8^g$ with our entire galaxy sample. We perform extensive tests of the efficacy of our method by fitting the same observables to mock data using both constrained and non-constrained simulations. We discover that in many cases the level of cosmic variance between the two simulations can produce biased constraints that lead to an erroneous detection of galaxy assembly bias if the non-constrained simulation is used. When applying our method to the SDSS data, the ELUCID reconstruction effectively removes an otherwise strong degeneracy between cosmic variance and galaxy assembly bias in SDSS, enabling us to derive an accurate and stringent constraint on the latter. Our fiducial ELUCID constraint, for galaxies above a stellar mass threshold $M_{\ast }=10^{10.2}{h}^{-2}{M}_{\odot }$, is ${\mathcal{Q}}_{\mathrm{cen}}=-0.09\pm 0.05$ and ${\mathcal{Q}}_{\mathrm{sat}}=0.09\pm 0.10$, indicating no evidence for a significant~($>2\sigma$) galaxy assembly bias in the local Universe probed by SDSS. Finally, our method provides a promising path to the robust modelling of the galaxy-halo connection within future surveys like DESI and PFS.

arXiv comment25 pages, 7 main figures, and 2 appendix figures; accepted by SCPMA (https://www.sciengine.com/SCPMA/doi/10.1007/s11433-022-1955-7); highlight review (https://www.sciengine.com/SCPMA/doi/10.1007/s11433-022-1967-6)

References in corpus (101)

• emcee: The MCMC Hammer
• Planck 2015 results. XIII. Cosmological parameters
• Stellar population synthesis at the resolution of 2003
• A Universal Density Profile from Hierarchical Clustering
• Galactic Stellar and Substellar Initial Mass Function
• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• The cosmological simulation code GADGET-2
• The Seventh Data Release of the Sloan Digital Sky Survey
• Stellar Masses and Star Formation Histories for 10^5 Galaxies from the Sloan Digital Sky Survey
• The Baryon Oscillation Spectroscopic Survey of SDSS-III
• Halo Models of Large Scale Structure
• Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Main Galaxy Sample
• Ellipsoidal collapse and an improved model for the number and spatial distribution of dark matter haloes
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• UV Star Formation Rates in the Local Universe
• An analytic model for the spatial clustering of dark matter haloes
• The Rockstar Phase-Space Temporal Halo Finder and the Velocity Offsets of Cluster Cores
• NYU-VAGC: a galaxy catalog based on new public surveys
• Analytic model for galaxy and dark matter clustering
• Halo occupation numbers and galaxy bias
• Galaxy Groups in the SDSS DR4: I. The Catalogue and Basic Properties
• Halos and galaxies in the standard cosmological model: results from the Bolshoi simulation
• The Dark Side of the Halo Occupation Distribution
• 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
• The Luminosity and Color Dependence of the Galaxy Correlation Function
• The Connection between Galaxies and their Dark Matter Halos
• Galaxy Clustering in the Completed SDSS Redshift Survey: The Dependence on Color and Luminosity
• Galaxy halo masses and satellite fractions from galaxy-galaxy lensing in the SDSS: stellar mass, luminosity, morphology, and environment dependencies
• Properties of Galaxy Groups in the SDSS: I.-- The Dependence of Colour, Star Formation, and Morphology on Halo Mass
• Extragalactic Science, Cosmology and Galactic Archaeology with the Subaru Prime Focus Spectrograph (PFS)
• The age dependence of halo clustering
• How Many Galaxies Fit in a Halo? Constraints on Galaxy Formation Efficiency from Spatial Clustering
• Constraining Galaxy Formation and Cosmology with the Conditional Luminosity Function of Galaxies
• The Dependence of Halo Clustering on Halo Formation History, Concentration, and Occupation
• New constraints on the evolution of the stellar-to-dark matter connection: a combined analysis of galaxy-galaxy lensing, clustering, and stellar mass functions from z=0.2 to z=1
• A Halo-Based Galaxy Group Finder: Calibration and Application to the 2dFGRS
• Spatial correlation function and pairwise velocity dispersion of galaxies: CDM models versus the Las Campanas Survey
• A Map of the Universe
• Assembly bias in the clustering of dark matter haloes
• Deriving the Nonlinear Cosmological Power Spectrum and Bispectrum from Analytic Dark Matter Halo Profiles and Mass Functions
• Halo assembly bias and its effects on galaxy clustering
• On the environmental dependence of halo formation
• Linking Early and Late Type Galaxies to their Dark Matter Haloes
• A marked correlation function analysis of halo formation times in the Millennium Simulation
• The Dark Side of Galaxy Color
• Mapping stellar content to dark matter halos using galaxy clustering and galaxy-galaxy lensing in the SDSS DR7
• The dependence of dark halo clustering on the formation epoch and the concentration parameter
• On Halo Formation Times and Assembly Bias
• Introducing Decorated HODs: modeling assembly bias in the galaxy-halo connection
• Halo Model at Its Best: Constraints on Conditional Luminosity Functions from Measured Galaxy Statistics
• Subhalo abundance matching and assembly bias in the EAGLE simulation
• A Re-examination of Galactic Conformity and a Comparison with Semi-analytic Models of Galaxy Formation
• ELUCID - Exploring the Local Universe with reConstructed Initial Density field I: Hamiltonian Markov Chain Monte Carlo Method with Particle Mesh Dynamics
• ELUCID - Exploring the Local Universe with reConstructed Initial Density field III: Constrained Simulation in the SDSS Volume
• The Impact of Assembly Bias on the Galaxy Content of Dark Matter Halos
• Mapping stellar content to dark matter halos. II. Halo mass is the main driver of galaxy quenching
• Beyond Assembly Bias: Exploring Secondary Halo Biases for Cluster-size Haloes
• Assembly bias and the dynamical structure of dark matter halos
• 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
• Beyond Halo Mass: Galactic Conformity as a Smoking Gun of Central Galaxy Assembly Bias
• The impact of assembly bias on the halo occupation in hydrodynamical simulations
• Environmental Dependence of Cold Dark Matter Halo Formation
• On Detecting Halo Assembly Bias with Galaxy Populations
• Revealing the galaxy-halo connection in IllustrisTNG
• Constraints on Assembly Bias from Galaxy Clustering
• Observational Evidence for an Age Dependence of Halo Bias
• Reconstructing the cosmic density field with the distribution of dark matter halos
• Spatial Clustering of Dark Matter Halos: Secondary Bias, Neighbor Bias, and the Influence of Massive Neighbors on Halo Properties
• Dissecting and Modelling Galaxy Assembly Bias
• Detection of galaxy assembly bias
• The Evolution of Assembly Bias
• A flexible modelling of galaxy assembly bias
• Emulating galaxy clustering and galaxy-galaxy lensing into the deeply nonlinear regime: methodology, information, and forecasts
• Strong clustering of underdense regions and the environmental dependence of clustering from Gaussian initial conditions
• Halo Histories vs. Galaxy Properties at z=0 II: Large-Scale Galactic Conformity
• Mapping stellar content to dark matter halos - III.Environmental dependence and conformity of galaxy colours
• The dependence of halo bias on age, concentration and spin
• Cosmic web dependence of galaxy clustering and quenching in SDSS
• Exploring the squeezed three-point galaxy correlation function with generalized halo occupation distribution models
• Observational evidence of galaxy assembly bias
• Environmental Effects on Real-Space and Redshift-Space Galaxy Clustering
• On the evidence for large-scale galactic conformity in the local Universe
• The effects of assembly bias on cosmological inference from galaxy-galaxy lensing and galaxy clusters
• The Secondary Spin Bias of Dark Matter Haloes
• Testing the Accuracy of Halo Occupation Distribution Modelling using Hydrodynamic Simulations
• Cosmological Constraints from the Large Scale Weak Lensing of SDSS MaxBCG Clusters
• Cosmology with Stacked Cluster Weak Lensing and Cluster-Galaxy Cross-Correlations
• Galaxy assembly bias of central galaxies in the Illustris simulation
• ELUCID. VI: Cosmic variance of galaxy distribution in the local Universe
• Dependence of Halo Bias and Kinematics on Assembly Variables
• How to Optimally Constrain Galaxy Assembly Bias: Supplement Projected Correlation Functions with Count-in-cells Statistics
• Small- and Large-Scale Galactic Conformity in SDSS DR7
• Revealing the cosmic web dependent halo bias
• Probing galaxy assembly bias with LRG weak lensing observations
• The Effects of Galaxy Assembly Bias on the Inference of Growth Rate from Redshift-Space Distortions
• On the Clustering of Faint Red Galaxies
• The halo mass function conditioned on density from the Millennium Simulation: insights into missing baryons and galaxy mass functions
• Dark matter halo assembly bias: environmental dependence in the non-Markovian excursion set theory
• Galaxy assembly bias and large-scale distribution: a comparison between IllustrisTNG and a semi-analytic model

Cited by in corpus (14)

• Constraining $M_{\nu }$ with the Bispectrum II: The Total Information Content of the Galaxy Bispectrum
• The Aemulus Project V: Cosmological constraint from small-scale clustering of BOSS galaxies
• On the influence of halo mass accretion history on galaxy properties and assembly bias
• The MillenniumTNG Project: Inferring cosmology from galaxy clustering with accelerated N-body scaling and subhalo abundance matching
• The cosmological dependence of halo and galaxy assembly bias
• Responses of Halo Occupation Distributions: a new ingredient in the halo model & the impact on galaxy bias
• Connections between galaxy properties and halo formation time in the cosmic web
• Modeling assembly bias with machine learning and symbolic regression
• Toward Accurate Modeling of Galaxy Clustering on Small Scales: Constraining the Galaxy-Halo Connection with Optimal Statistics
• Toward Accurate Modeling of Galaxy Clustering on Small Scales: Halo Model Extensions and Lingering Tension
• On the Constraints of Galaxy Assembly Bias in Velocity Space
• Satellite Content and Halo Mass of Galaxy Clusters: Comparison between Red-Sequence and Halo-based Optical Cluster Finders
• Assembly bias in quadratic bias parameters of dark matter halos from forward modeling
• Exploiting Non-linear Scales in Galaxy-Galaxy Lensing and Galaxy Clustering: A Forecast for the Dark Energy Survey