Properties of Galaxy Clusters

Details Properties of Galaxy Clusters Properties of Galaxy Clusters

1998-08-31

arxiv.org/abs/astro-ph/9808350v1

Astronomy and Astrophysics

Astrophysics

2 pages, 2 figures, to appear in: Large Scale Structures: Tracks and Traces, Proceedings of the 12th Potsdam Cosmology Worksho

Scientific paper

The formation process, properties, and spatial distribution of galaxy groups and clusters are closely related to the background cosmological model. We use numerical simulations of variants of the CDM model with different cosmological parameters in order to compare statistical measures such as mass spectra, merging histories, correlation functions, and clustering power spectra with relevant observations. The study of the time evolution shows that the internal structure of galaxy groups and clusters is connected with their merging history. Here we discuss the virialisation and the halo's spin parameters.

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