We present the follow-up of three medium redshift galaxy clusters from the SHARC survey observed with Xmm–newton .
We studied RX J0256.5+0006 which shows two components which are very likely in interaction .
The smallest component exhibits a comet-like structure indicating ram pressure stripping as it falls onto the main cluster .
The second cluster , RX J2237.0-1516 is an elliptical cluster with a gas temperature of 3.0 \pm 0.5 keV .
The third cluster , RX J1200.8-0328 seems to be in a relaxed state because its shape is regular and we do not see obvious temperature gradient .
Its mean temperature is 5.1 ^ { +0.7 } _ { -0.5 } keV .