THE HEAD TAIL RADIO GALAXY B1610-605

The radio galaxy B1610-605 within the Abell cluster A3627 has a low-br ightness tail extending at least 26 arcmin from the nucleus of the 14. 5m galaxy. The structure of this tail has been explored using observat ions with the Molonglo Observatory Synthesis Telescope (MOST) and the Australia Telescope Compact Array (ATCA). We present details of the br ightness, width and alignment of the tail. The single tail expands and brightens rapidly within 2 arcmin of the nucleus. Confinement by the pressure of the cluster medium maintains a low but constant brightness for the tail between 10 and 25 arcmin. There are indications of turbu lence down the tail but the position of the ridge remains within 1.6 a rcmin of the initial alignment throughout its length.