Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The inner gas mass-temperature profile in the core of nearby galaxy
  clusters   We present a mass-temperature profile of gas within the central 10 kpc of a
small sample of cool core clusters. The mass of the hottest gas phases, at 1.5
and 0.7 keV, is determined from X-ray spectra from the XMM Reflection Grating
Spectrometers. The masses of the partially ionised atomic and the molecular
phases are obtained from published H$\alpha$ and CO measurements. We find that
the mass of gas at 0.7 keV in a cluster is remarkably similar to that of the
molecular gas. Assuming pressure equilibrium between the phases, this means
that they occupy volumes differing by $10^5$. The molecular gas is located
within the HU nebula which is often filamentary and coincides radially and in
position angle with the soft X-ray emitting gas.

1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat