Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: XMM-Newton Observations of Galaxy Clusters: The Radial Temperature
  Profile of A2163   XMM-Newton, with its high throughput and excellent spatial and spectral
resolution, is an ideal instrument for spectro-imaging observation of clusters.
Presented here is an XMM-Newton mosaic observation of A2163, from which a new
radial temperature profile is derived. The issue of background subtraction is
addressed in some detail as a proper treatment of the background is essential
for the derivation of correct temperatures, and thus, of the correct total
cluster mass.

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The categories of this paper are: hep-ex
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The categories of this paper are: econ
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
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The categories of this paper are: hep-th
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The categories of this paper are: nlin
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The categories of this paper are: cond-mat
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci