Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sunyaev Zel'dovich observations of a statistically complete sample of
  galaxy clusters with OCRA-p   We present 30 GHz Sunyaev Zel'dovich observations of a statistically complete
sample of galaxy clusters with OCRA-p. The clusters are the 18 most X-ray
luminous clusters at z > 0.2 in the ROSAT Brightest Cluster Sample. We correct
for contaminant radio sources via supplementary observations with the Green
Bank Telescope, also at 30 GHz, and remove a cluster that is contaminated by an
unresolved X-ray source. All 17 remaining clusters have central SZ effects with
Comptonisation parameter y_0 exceeding 1.9x10^-4, and 13 are detected at
significance > 3 sigma. We use our data to examine scalings between y_0 and
X-ray temperature, X-ray luminosity, and the X-ray mass proxy Y_X, and find
good agreement with predictions from self-similar models of cluster formation,
with an intrinsic scatter in y_0 of about 25%. We also comment on the success
of the observations in the face of the contaminant source population, and the
implications for upcoming cm-wave surveys.

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The categories of this paper are: hep-th
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The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ph
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The categories of this paper are: q-fin
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The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: nlin
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The categories of this paper are: stat
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The categories of this paper are: hep-ex
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The categories of this paper are: supr-con