Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Cluster Distribution as a Test for Dark Matter Models. I: Clustering
  Properties   We present extended simulations of the distribution of galaxy clusters in
different dark matter models, using an optimized version of the Zel'dovich
approximation. Six different dark matter models are studied: Standard CDM, Open
CDM, Tilted CDM, Cold + Hot DM, low-density CDM with cosmological constant, and
low Hubble constant ($h=0.3$) CDM. We compare simulations with an Abell/ACO
redshift sample. We find that the models that best reproduce the clustering of
the real data sets are the Cold + Hot DM model and the CDM model with a
cosmological constant. The probability density function of all models and data
is always well approximated by a lognormal distribution. We also find that the
linear biasing parameter for the simulated clusters is nearly constant over a
large range of scales, but its value depends on the model. We also note that
the abundances of clusters predicted by the Press-Schechter theory provide
strong constraints on these models: only the Cold + Hot DM model and the low-H
CDM model appear to produce the correct number-density of clusters. Taking this
constraint together with the cluster clustering statistics leads one to
conclude that the best of our models is the Cold + Hot DM scenario.

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The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: adap-org
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The categories of this paper are: supr-con
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The categories of this paper are: cond-mat
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The categories of this paper are: stat
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The categories of this paper are: solv-int
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The categories of this paper are: physics
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph