A SEARCH FOR COLD DUST IN 2 DISTANT RADIO GALAXIES

A search for dust in two distant radio galaxies at 1270 mu m is presen ted. No evidence of large masses of dust was found. The results are co mpared to millimetric observations of other high redshift galaxies wit h detected dust thermal emission. We find that our upper limits on the dust masses suggest a dust content lower than in most dust rich galax ies known at high redshift. However, they are still consistent with th e UV scattering models of the high z radio galaxies.