2011A&A...531A.149S


C.D.S. - SIMBAD4 rel 1.7 - 2020.01.29CET05:37:32

2011A&A...531A.149S - Astronomy and Astrophysics, volume 531A, 149-149 (2011/7-1)

The cosmic web for density perturbations of various scales.

SUHHONENKO I., EINASTO J., LIIVAMAEGI L.J., SAAR E., EINASTO M., HUETSI G., MUELLER V., STAROBINSKY A.A., TAGO E. and TEMPEL E.

Abstract (from CDS):

We follow the evolution of galaxy systems in numerical simulations. Our goal is to understand the role of density perturbations on various scales in the formation and evolution of the cosmic web. We perform numerical simulations with the full power spectrum of perturbations, and with a spectrum cut at long wavelengths. In addition, we have one model, where we cut the intermediate waves. We analyse the density field and study void sizes and density field clusters in different models. Our analysis shows that the fine structure (groups and clusters of galaxies) are created by small-scale density perturbations of scale ≤8 h–1 Mpc. Filaments of galaxies and clusters are created by perturbations of intermediate scale from ∼8 to ∼32 h–1 Mpc, and superclusters of galaxies by larger perturbations. We conclude that the texture of the cosmic web is determined by density perturbations of the scales up to ∼100 h–1 Mpc. Larger perturbations do not change the texture of the web, but modulate the richness of galaxy systems, and make voids emptier.

Abstract Copyright:

Journal keyword(s): large-scale structure of Universe - cosmology: miscellaneous - cosmology: theory - galaxies: clusters: general - matter - methods: numerical dark

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 10680 1
2 NAME VIRGO-COMA SUPERCL SCG 12 04 +09.0           ~ 16 0
3 NAME LOCAL SUPERCL SCG 12 31 +12.4           ~ 443 0
4 NAME SHAPLEY-CENTAURUS CL SCG 13 06.0 -33 04           ~ 483 0
5 [EET2007] N152 SCG 13 06.2 -02 34           ~ 39 0
6 ACO 1958 ClG 14 43 13 +30 58.3           ~ 51 0
7 NAME Local Group GrG ~ ~           ~ 6775 0
8 NAME Sloan Great Wall ? ~ ~           ~ 152 0

    Equat.    Gal    SGal    Ecl

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2020.01.29-05:37:32

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