Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radial metallicity profiles for a large sample of galaxy clusters
  observed with XMM-Newton   Aims. We measured radial metallicity profiles for a sample of ~50 hot,
intermediate redshift galaxy clusters, selected from the XMM-Newton archive.
  Methods. As in our previous paper, we used background modeling rather than
background subtraction, and the Cash statistic rather than the chi square. This
method requires a careful characterization of all background components. We
also performed montecarlo simulations to assess systematic effects.
  Results. The mean metallicity profile shows a peak in the center, and gently
declines out to 0.2 R_{180}. Beyond 0.2 R_{180} the metallicity is roughly 0.2
solar and, at variance with recently published expectations based on
simulations, consistent with being flat. We find no evidence of profile
evolution from z=0.1 to z=0.3. When comparing our mean profile to those
obtained by recent works with BeppoSAX and Chandra, we find remarkable
agreement over the entire radial range.

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The categories of this paper are: hep-th
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The categories of this paper are: dg-ga
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The categories of this paper are: stat
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: gr-qc
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The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: cond-mat
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The categories of this paper are: bayes-an
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The categories of this paper are: nucl-th
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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas
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The categories of this paper are: eess
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The categories of this paper are: nucl-ex