Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Results from the REFLEX Cluster Survey   Based on the ROSAT All-Sky Survey we have conducted a large redshift survey
as an ESO key programme to identify and secure redshifts for the X-ray
brightest clusters found in the southern hemisphere. We present first results
for a highly controlled sample for a flux limit of 3 10-12 erg/s/cm+2
comprising 475 clusters (87% with redshifts). The logN-logS function of the
sample shows an almost perfect Euclidian slope and a preliminary X-ray
luminosity function is presented.

18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math