CHARACTERIZING THE X-RAY PROPERTIES OF GALAXY CLUSTERS AT 0.7 < Z < 0.8

We propose to compare Xray luminosities and temperatures of a sample ofconfirmed opticallyselected zvirgul0.7 clusters to welldetermined velocitydispersions and weaklensing maps. The use of nonXray selected clustersenables us to search for large deviations in the Xray properties relative toother mass tracers. Our extensive VLT, HST, and NTT observational program hasprovided velocity measurements for between 30 and 60 cluster members per clusterand weak lensing maps augmented with photometric redshift information for six ofthe most optically luminous clusters at z virgul 0.7 in the Las Campanas DistantCluster Survey. Here we propose to continue this study by observing three moreof these clusters. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]