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.
