The large-scale structure in the Chandra Deep Field South
  We have studied the large scale distribution of matter in the Chandra Deep
Field South on the basis of photometric redshifts and we have identifed several
over-densities between redshift 0.6 and 2.3. We analyse two of these structures
using the deepest X-ray observations ever obtained: 4 Ms with the Chandra
satellite and 2.5 Ms with XMM-Newton. We set a very faint upper limit on the
X-ray luminosity of a structure at redshift 1.6, and we find an extended X-ray
emission from a structure at redshift 0.96 of which we can estimate the gas
temperature and make a comparison with the scaling relations between the X-ray
luminosity and mass or temperature of high redshift galaxy clusters.
