Filamentary superclustering in a universe dominated by cold dark matter

Journal Article · Fri Mar 01 04:00:00 EST 1991 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/169760· OSTI ID:5866866

West, M J; Villumsen, J V; Dekel, A ^[1]

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1. Toronto Univ. (Canada) Ohio State Univ., Columbus (USA) Jerusalem Hebrew Univ. (Israel)

The relative orientations of neighboring clusters of galaxies in a universe dominated by cold dark matter (CDM) are examined using N-body simulations. A clear tendency is found for the major axes of neighboring clusters to be aligned for separations up to 10-15/sq h Mpc when all clusters pairs are included. When only those clusters which reside within superclusters are considered, alignments are found over even larger scales, up to about 30/sq h Mpc. The orientations of cluster minor axes also provide supporting evidence of the presence of filamentary rather than sheetlike features in the large-scale mass distributions. These findings agree well with observational results. The results indicate that a CDM-dominated universe can account for many of the observed features of the large-scale structure. 95 refs.

• OSTI ID: 5866866
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 369; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALIGNMENT
COLD PLASMA
COMPUTERIZED SIMULATION
COSMOLOGICAL MODELS
DISTRIBUTION
GALACTIC EVOLUTION
GALAXY CLUSTERS
MANY-BODY PROBLEM
MASS DISTRIBUTION
MATHEMATICAL MODELS
NONLUMINOUS MATTER
PLASMA
SIMULATION
SPATIAL DISTRIBUTION
UNIVERSE