ELUCID -- Exploring the Local Universe with the reConstructed Initial Density field. II: Reconstruction diagnostics, applied to numerical halo catalogs

Abstract

The ELUCID project aims to build a series of realistic cosmological simulations that reproduce the spatial and mass distribution of the galaxies as observed in the Sloan Digital Sky Survey (SDSS). This requires powerful reconstruction techniques to create constrained initial conditions. We test the reconstruction method by applying it to several $N$-body simulations. We use 2 medium resolution simulations from each of which three additional constrained $N$-body simulations were produced. We compare the resulting friend of friend catalogs by using the particle indexes as tracers, and quantify the quality of the reconstruction by varying the main smoothing parameter. The cross identification method we use proves to be efficient, and the results suggest that the most massive reconstructed halos are effectively traced from the same Lagrangian regions in the initial conditions. Preliminary time dependence analysis indicates that high mass end halos converge only at a redshift close to the reconstruction redshift. This suggests that, for earlier snapshots, only collections of progenitors may be effectively cross-identified.

References in corpus (62)

• The cosmological simulation code GADGET-2
• The Seventh Data Release of the Sloan Digital Sky Survey
• The many lives of active galactic nuclei: cooling flows, black holes and the luminosities and colours of galaxies
• Populating a cluster of galaxies - I. Results at z=0
• E pur si muove: Galiliean-invariant cosmological hydrodynamical simulations on a moving mesh
• The 2dF Galaxy Redshift Survey: Spectra and redshifts
• Cosmological Hydrodynamics with Adaptive Mesh Refinement: a new high resolution code called RAMSES
• Hierarchical Galaxy Formation
• GADGET: A code for collisionless and gasdynamical cosmological simulations
• The Rockstar Phase-Space Temporal Halo Finder and the Velocity Offsets of Cluster Cores
• The Fourth Data Release of the Sloan Digital Sky Survey
• Semi-Analytic Modelling of Galaxy Formation: The Local Universe
• A Comprehensive Analysis of Uncertainties Affecting the Stellar Mass - Halo Mass Relation for 0<z<4
• Galaxy Groups in the SDSS DR4: I. The Catalogue and Basic Properties
• The Halo Occupation Distribution: Towards an Empirical Determination of the Relation Between Galaxies and Mass
• Ahf: Amiga's Halo Finder
• Triaxial Modeling of Halo Density Profiles with High-resolution N-body Simulations
• Merger rates in hierarchical models of galaxy formation. II: Comparison with N-body simulations
• Gasoline: An adaptable implementation of TreeSPH
• Adaptive Refinement Tree - a new high-resolution N-body code for cosmological simulations
• Constraining Galaxy Formation and Cosmology with the Conditional Luminosity Function of Galaxies
• A primer on hierarchical galaxy formation: the semi-analytical approach
• 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
• Haloes gone MAD: The Halo-Finder Comparison Project
• The origin and implications of dark matter anisotropic cosmic infall on ~L* haloes
• Evolution of the Galaxy - Dark Matter Connection and the Assembly of Galaxies in Dark Matter Halos
• Galaxy Groups in the SDSS DR4: II. halo occupation statistics
• Galaxy Groups in the SDSS DR4: III. the luminosity and stellar mass functions
• GALICS I: A hybrid N-body semi-analytic model of hierarchical galaxy formation
• Bayesian physical reconstruction of initial conditions from large scale structure surveys
• Constrained Simulations of the Real Universe: II. Observational Signatures of Intergalactic Gas in the Local Supercluster Region
• Linking Early and Late Type Galaxies to their Dark Matter Haloes
• On the Origin of the Global Schmidt Law of Star Formation
• Building Merger Trees from Cosmological N-body Simulations
• Semi-analytical model of galaxy formation with high-resolution N-body simulations
• SubHaloes going Notts: The SubHalo-Finder Comparison Project
• Reconstruction of the early Universe as a convex optimization problem
• Galaxy Halo Occupation at High Redshift
• ELUCID - Exploring the Local Universe with reConstructed Initial Density field I: Hamiltonian Markov Chain Monte Carlo Method with Particle Mesh Dynamics
• Constrained Simulations of the Real Universe: the Local Supercluster
• Early supersymmetric cold dark matter substructure
• The stellar-to-halo mass relations of local galaxies segregates by color
• The effects of baryons on the halo mass function
• The Initial Conditions of the Universe from Constrained Simulations
• The effect of AGN feedback on the halo mass function
• Reconstructing the Cosmic Velocity and Tidal Fields with Galaxy Groups Selected from the Sloan Digital Sky Survey
• The Impact of Cooling and Feedback on Disc Galaxies
• Reconstructing the Initial Density Field of the Local Universe: Method and Test with Mock Catalogs
• Reconstructing the cosmic density field with the distribution of dark matter halos
• Fast optimal CMB power spectrum estimation with Hamiltonian sampling
• Reconstructing cosmological initial conditions from galaxy peculiar velocities. I. Reverse Zeldovich Approximation
• Simulations of the Local Universe Constrained by Observational Peculiar Velocities
• Simulating Structure Formation of the Local Universe
• Spatial correlation functions and the pairwise peculiar velocity dispersion of galaxies in the PSCz survey: implications for the galaxy biasing in cold dark matter models
• How does our choice of observable influence our estimation of the centre of a galaxy cluster? Insights from cosmological simulations
• Phase-space structures II: Hierarchical Structure Finder
• Sussing Merger Trees: the influence of the halo finder
• Modeling Galaxy Clustering by Color
• Precision constrained simulation of the Local Universe
• Estimating CDM Particle Trajectories in the Mildly Non-Linear Regime of Structure Formation. Implications for the Density Field in Real and Redshift Space
• Halo based reconstruction of the cosmic mass density field

Cited by in corpus (16)

• Large-scale dark matter simulations
• ELUCID IV: Galaxy Quenching and its Relation to Halo Mass, Environment, and Assembly Bias
• ELUCID V. Lighting dark matter halos with galaxies
• (DarkAI) Mapping the large-scale density field of dark matter using artificial intelligence
• Lensing magnification: gravitational waves from coalescing stellar-mass binary black holes
• Connections between galaxy properties and halo formation time in the cosmic web
• The Correspondence between Convergence Peaks from Weak Lensing and Massive Dark Matter Haloes
• Field-Based Physical Inference From Peculiar Velocity Tracers
• Galaxy-group (halo) alignments from SDSS DR7 and the ELUCID simulation
• The effect of local universe constraints on halo abundance and clustering
• Galaxy-halo size relation from Sloan Digital Sky Survey Data Release 7 and the ELUCID simulation
• An efficient and robust method to estimate halo concentration
• DarkAI: Reconstructing the density, velocity and tidal field of dark matter from a DESI-like bright galaxy sample
• Galaxy and halo properties around cosmic filaments from Sloan Digital Sky Survey Data Release 7 and the ELUCID simulation
• Characterizing the assembly of dark matter halos with protohalo size histories: I. Redshift evolution, relation to descendant halos, and halo assembly bias
• ELUCID-DESI I: A Parallel MPI Implementation of the Initial Condition Solver for Large-Scale Reconstruction Simulations