File:H1821.png

Chandra X-ray image of the quasar and the surrounding intracluster medium in the 0.7-7.0 keV band. Overplotted in blue are the 1.4 GHz VLA radio contours from Blundell (https://arxiv.org/abs/0911.2339), showing the jets to the north and south. The region between the two green circles is the 30-80 kpc in which the temperature and entropy profile steepen dramatically. The white sectors show the regions along the jet directions to the north and south, and away from the jet direction to the east and west.

Credit: Chandra, Walker, S.A. et al.