Left: X-ray temperature map overlaid with contours of radio emission. Red contours are from 244 MHz GMRT emission, green contours from 614 MHz GMRT emission and the central blue contours are from L-band JVLA radio emission. Low-temperature gas (darker colours, see Figs 8 and 9) is observed at the centre of the system and stretches east and west from the nucleus towards the bubbles. Right: the same radio contours overlaid on the soar net Hα image. The beam sizes are shown in the top-right corner of the image.