Giant Radio Galaxies in the ATLBS fields

Giant radio sources at redshift one and above are detectable as extended Xraysources due to inverse Compton scattering of the Cosmic Microwave Background byrelativistic electrons with Lorentz factors of about 1000. We propose here tomake two 40 ks observations with XMM of regions selected from the AustraliaTelescope Low Brightness Survey which are rich in extended radio sources inorder to detect this emission. We shall determine the total energy inrelativistic electrons (which is r^ant to how central black holes feed energyback to their surroundings) and magnetic fields where the Xray and radioemission overlap. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]