084058

We propose to observe 3 X-ray luminous clusters which each have over 10elev10 Msun of cold molecular gas in their X-ray cool cores. The ALMA velocity and morphology data indicate that the cold gas is disturbed in these object. If comma as Hitomi has shown in the Perseus cluster comma the cold gas and ICM share the same velocity field comma then we shall measure velocity broadening of the soft X-ray emission lines with the XMM RGS. We shall also measure or constrain mass cooling rates of the ICM below 1-2 keV.