Large-scale distribution and spectral properties of galaxies in the Shapley Concentration

Details Large-scale distribution and spectral properties of galaxies in the Shapley Concentration Large-scale distribution and spectral properties of galaxies in the Shapley Concentration

2000-11-21

arxiv.org/abs/astro-ph/0011390v1

Astronomy and Astrophysics

Astrophysics

13 pages; proceedings of "Constructing the Universe with Clusters of galaxies", IAP 2000 meeting, F.Durret & D.Gerbal eds

Scientific paper

We present the results of a redshift survey of both cluster and intercluster galaxies in the central part of the Shapley Concentration, the richest supercluster of clusters in the nearby Universe, consisting of ~2000 radial velocities. We estimate the total overdensity in galaxies of the supercluster and its mass and we discuss the cosmological implications of these results. Moreover, using a Principal Components Analysis technique, we study the influence of the cluster and supercluster dynamics on the galaxy spectral morphology.

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