Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Redshift-Space Two Point Correlation Function of ELAIS-S1 Galaxies   We investigate the clustering properties of galaxies in the recently
completed ELAIS-S1 redshift survey through their spatial two point
autocorrelation function. We used a sub-sample of the ELAIS-S1 catalog covering
approximately 4 deg^2 and consisting of 148 objects selected at 15 micron with
a flux >0.5 mJy and redshift z<0.5. We detected a positive signal in the
correlation function that, in the range of separations 1-10 h mpc is well
approximated by a power law with a slope gamma = 1.4 and a correlation length s
=5.4 h mpc. This result is in good agreement with the redshift-space
correlation function measured in more local samples of mid infrared selected
galaxies like the IRAS PSC$z$ redshift survey. This suggests a lack of
significant clustering evolution of infrared selected objects out to $z=0.5$
that is further confirmed by the consistency found between the correlation
functions measured in a local (z<0.2) and a distant (0.2<z<0.5) subsample of
ELAIS-S1 galaxies. We also confirm that optically selected galaxies in the
local redshift surveys, especially those of the SDSS sample, are significantly
more clustered than infrared objects.

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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
19
The categories of this paper are: eess
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The categories of this paper are: quant-ph
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The categories of this paper are: funct-an
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The categories of this paper are: chem-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
3
The categories of this paper are: physics