  We present detailed spatially-resolved spectroscopy results of the
observation of Abell 1835 using the European Photon Imaging Cameras (EPIC) and
the Reflection Grating Spectrometers (RGS) on the XMM-Newton observatory. Abell
1835 is a luminous ($10^{46}$ ergs ${s}^{-1}$), medium redshift ($z=0.2523$),
  X-ray emitting cluster of galaxies. The observations support the
interpretation that large amounts of cool gas are present in a multi-phase
medium surrounded by a hot ($kT_{e}$=8.2 keV) outer envelope. We detect O VIII
Ly$\alpha$ and two Fe XXIV complexes in the RGS spectrum. The emission measure
of the cool gas below $kT_{e}$=2.7 keV is much lower than expected from
standard cooling-flow models, suggesting either a more complicated cooling
process than simple isobaric radiative cooling or differential cold absorption
of the cooler gas.

Astrophysics