Large Scale Structures in the Las Campanas Redshift Survey and in Simulations

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dc.creatorMüller, V.
dc.creatorDoroshkevich, A. G.
dc.creatorRetzlaff, J.
dc.creatorTurchaninov, V.
dc.date1998-11-23
dc.date.accessioned2026-07-07T02:29:15Z
dc.date.available2026-07-07T02:29:15Z
dc.descriptionThe 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 $Ω_m \le 0.5$ with or without a cosmological constant.
dc.description12 LATEX pages, 4 encapsulated figures, to appear in the Proceedings of 'Observational Cosmology: The Development of Galaxy Systems', Sesto 1998
dc.identifierhttps://arxiv.org/abs/astro-ph/9811365
dc.identifierhttp://arxiv.org/abs/astro-ph/9811365
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/13397
dc.subjectAstrophysics
dc.titleLarge Scale Structures in the Las Campanas Redshift Survey and in Simulations
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