Measuring Omega via. Temperature function of High Z Clusters

The goal of our project is to quantify the number of massive, highredshiftgalaxy clusters, with the aim of constraining the density parameter of theUniverse by employing the extreme sensitivity of the highmass end of thecosmological mass function to \\Omega . For that purpose, we propose a twofoldaproach: 1) measure the temperature of a sample of known high z ( 0.4 < z<0.7 ) clusters detected in the SHARC Xray survey, and 2) search for theXray emission associated with more distant cluster candidates ( z>1 )thought to be relatively massive due to either their lensing effects or theirSunyaevZel.dovich signal. This proposal is a collaboration between EPIC, SOC and SSC. OM filters to be changed if UHB limits updated. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]