The velocity structure of the Intracluster Medium of the Centaurus
  cluster
  There are few direct measurements of ICM velocity structure, despite its
importance for understanding clusters. We present a detailed analysis of the
velocity structure of the Centaurus cluster using XMM-Newton observations.
Using a new EPIC-pn energy scale calibration, which uses the Cu Ka instrumental
line as reference, we are able to obtain velocity measurements with
uncertainties down to $\Delta v \sim 79$ km/s. We create 2D spectral maps for
the velocity, metallicity, temperature, density, entropy and pressure with an
spatial resolution of 0.25'. We have found that the velocity structure of the
ICM is similar to the velocity structure of the main galaxies while the cold
fronts are likely moving in a plane perpendicular to our line of sight with low
velocity. Finally, we have found a contribution from the kinetic component of
<25\% to the total energetic budget for radius $>30$ kpc.
