Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A 140 Mpc Oscillation of the Abell Cluster Correlation Function   We have developed a parameter-independent method to detect local maxima of
the two-point correlation function. By applying it to two samples of rich Abell
clusters of galaxies with redshift limits z<0.08 and z<0.12 we detect three
maxima centered at 150 Mpc, 300 Mpc and 430 Mpc with confidence levels 80% and
higher. This sequence of fluctuations has an average interval of 140 Mpc, that
can be explained by a power spectrum with a distinct peak at
k=0.048+-0.005/Mpc.

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The categories of this paper are: cs
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The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
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The categories of this paper are: physics
18
The categories of this paper are: econ
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The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
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The categories of this paper are: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom