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Paper: Large Scale Structures in the Las Campanas Redshift Survey and in Simulations
Volume: 176, Observational Cosmology: The Development of Galaxy Systems
Page: 297
Authors: Müller, V.; Doroshkevich, A. G.; Retzlaff, J.; Turchaninov, V.
Abstract: The large supercluster structures obvious in recent galaxy redshift surveys are quantified using an one-dimensional cluster analysis (core sampling) and a three-dimensional cluster analysis based on the minimal spanning tree. The comparison with the LCRS reveals promising stable results. At a mean overdensity of about ten, the supercluster systems form huge wall-like structures comprising about 40% of all galaxies. The overdense clusters have a low mean transverse velocity dispersion of about 400 km/s, i.e. they look quite narrow in redshift space. We performed N-body simulations with large box sizes for six cosmological scenarios. The quantitative analysis shows that the observed structures can be understood best in low density models with Ω_m <= 0.5 with or without a cosmological constant.
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