AN IN-DEPTH STUDY OF MASSIVE REXFLEX CLUSTERS AT Z virgul 0.3

We propose the completion of the study of a statistically complete sample of 13massive, distant REFLEX cluster allocated in AO1 for which 5 out of 12 clusterobserved so far yielded observational data heavily contaminated by proton flaresand unusable for the major goals of the proposed project. The main aim of theproject is the construction of the Xray cluster temperature and mass functionfor the test of cosmological models. We have also started an in depth opticalstudy of these clusters at ESO to determine the galaxy dynamics, obtain a censusof the star formation rate in the galaxy population, and to monitor itssupernova rate. To complete this project we need good observational data of allthe clusters and therefore request the reobservation of those 5 objects. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]