Evolution of superclusters in the cosmic web

Abstract

Aims. We investigate how properties of the ensemble of superclusters in the cosmic web evolve with time. Methods. We perform numerical simulations of the evolution of the cosmic web using the LambdaCDM model in box sizes L0 = 1024, 512, 256 Mpc/h. We find supercluster ensembles of models for four evolutionary stages, corresponding to the present epoch z = 0, and to redshifts z = 1, z = 3, and z = 10. We calculate fitness diameters of superclusters defined from volumes of superclusters divided to filling factors of over-density regions. Geometrical and fitness diameters of largest superclusters, and the number of superclusters as functions of the threshold density are used as percolation functions to describe geometrical properties of the ensemble of superclusters in the cosmic web. We calculate distributions of geometrical and fitness diameters and luminosities of superclusters, and follow time evolution of percolation functions and supercluster distributions. We compare percolation functions and supercluster distributions of models and samples of galaxies of the Sloan Digital Sky Survey (SDSS). Results. Our analysis shows that fitness diameters of superclusters have a minimum at certain threshold density. Fitness diameters around minima almost do not change with time in co-moving coordinates. Numbers of superclusters have maxima which are approximately constant for all evolutionary epochs. Geometrical diameters of superclusters decrease during the evolution of the cosmic web; luminosities of superclusters increase during the evolution. Conclusions. Our study suggests that evolutionary changes occur inside dynamical volumes of superclusters. The stability of fitness diameters and numbers of superclusters during the evolution is an important property of the cosmic web.

13 pages, 6 figures. Astronomy & Astrophysics (accepted)

References in corpus (30)

• The cosmological simulation code GADGET-2
• Cosmological parameters from SDSS and WMAP
• The many lives of active galactic nuclei: cooling flows, black holes and the luminosities and colours of galaxies
• The Eighth Data Release of the Sloan Digital Sky Survey: First Data from SDSS-III
• How Filaments are Woven into the Cosmic Web
• Evolution of the cosmic web
• The Laniakea supercluster of galaxies
• Multiscale Phenomenology of the Cosmic Web
• Optical and X-ray clusters as tracers of the supercluster-void network. I Superclusters of Abell and X-ray clusters
• The Supercluster-Void Network I. The Supercluster Catalogue and Large-Scale Distribution
• Groups and clusters of galaxies in the SDSS DR8. Value-added catalogues
• SDSS DR7 superclusters. The catalogues
• Superclusters of galaxies from the 2dF redshift survey. I. The catalogue
• Bayesian non-linear large scale structure inference of the Sloan Digital Sky Survey data release 7
• Tree structure of the percolating Universe
• Anatomy of luminosity functions: the 2dFGRS example
• Unfolding the Hierarchy of Voids
• On the definition of superclusters
• Luminous superclusters: remnants from inflation
• Future virialized structures: An analysis of superstructures in SDSS-DR7
• Universality of the Network and Bubble Topology in Cosmological Gravitational Simulations
• Morphological Properties of Superclusters of Galaxies
• Sloan Great Wall as a complex of superclusters with collapsing cores
• Detection of Network Structure in the Las Campanas Redshift Survey
• Clusters and Superclusters in the Las Campanas Redshift Survey
• Probing Large Scale Structure using Percolation and Genus Curves
• Steps toward the power spectrum of matter. II. The biasing correction with sigma_8 normalization
• Characteristic density contrasts in the evolution of superclusters. The case of A2142 supercluster
• Extended percolation analysis of the cosmic web
• BOSS Great Wall: morphology, luminosity, and mass

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• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
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• The Corona Borealis supercluster: connectivity, collapse, and evolution
• Death at watersheds: galaxy quenching in low-density environments
• Evolution of skewness and kurtosis of cosmic density fields
• The evolution of high-density cores of the BOSS Great Wall superclusters
• The Cosmic Large-Scale Structure in X-rays (CLASSIX) cluster survey IV: Superclusters in the local Universe at z <= 0.03
• Shapley Supercluster Survey: mapping the dark matter distribution
• Evolution of superclusters and supercluster cocoons in various cosmologies
• The shape distribution of superclusters in SDSS DR 12
• King Ghidorah Supercluster: Mapping the light and dark matter in a new supercluster at z=0.55 using the Subaru Hyper Suprime-Cam
• Evolution of matter and galaxy clustering in cosmological hydrodynamical simulations
• Nucleation regions in the Large-Scale Structure I. A catalogue of cores in nearby rich superclusters
• The SRG/eROSITA All-Sky Survey: Exploring halo assembly bias with X-ray selected superclusters
• Galaxy Superclusters and Their Complexes in the Cosmic Web
• Superclusters from velocity divergence fields
• Search for a possible quasi-periodic structure based on data of the SDSS DR12 LOWZ
• Constraining the Hubble parameter with the 21 cm brightness temperature signal in a universe with inhomogeneities
• Evolution of Cluster Alignments as Evidence of Large-scale Structure Formation in the Universe
• Spatial correlations of extended cosmological structures