The Shape, Multiplicity, and Evolution of Superclusters in LambdaCDM Cosmology

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dc.creatorWray, James J.
dc.creatorBahcall, Neta A.
dc.creatorBode, Paul
dc.creatorBoettiger, Carl
dc.creatorHopkins, Philip F.
dc.date2006-03-02
dc.date2007-01-30
dc.date.accessioned2026-07-07T10:43:39Z
dc.date.available2026-07-07T10:43:39Z
dc.descriptionWe determine the shape, multiplicity, size, and radial structure of superclusters in the LambdaCDM concordance cosmology from z = 0 to z = 2. Superclusters are defined as clusters of clusters in our large-scale cosmological simulation. We find that superclusters are triaxial in shape; many have flattened since early times to become nearly two-dimensional structures at present, with a small fraction of filamentary systems. The size and multiplicity functions are presented at different redshifts. Supercluster sizes extend to scales of ~ 100 - 200 Mpc/h. The supercluster multiplicity (richness) increases linearly with supercluster size. The density profile in superclusters is approximately isothermal (~ R^{-2}) and steepens on larger scales. These results can be used as a new test of the current cosmology when compared with upcoming observations of large-scale surveys.
dc.description33 pages, 15 figures, accepted to ApJ; minor content changes, some figures removed to shorten paper
dc.identifierhttps://arxiv.org/abs/astro-ph/0603060
dc.identifierhttp://arxiv.org/abs/astro-ph/0603060
dc.identifierAstrophys.J.652:907-916,2006
dc.identifierdoi:10.1086/508600
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182319
dc.subjectAstrophysics
dc.titleThe Shape, Multiplicity, and Evolution of Superclusters in LambdaCDM Cosmology
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