Extended Data Figure 2: X-ray image of the core of the Virgo cluster.
From: Turbulent heating in galaxy clusters brightest in X-rays
a, X-ray surface brightness in units of counts per second per pixel in the 0.5–3.5 keV energy band. b, Relative surface brightness fluctuations. Both images are smoothed with a 3′′ Gaussian. Black circles: excised point sources and central jet. White circles indicate ‘arm-like’ structures associated with the central AGN’s activity, which have also been excised. We adopt 16.9 Mpc as the distance to the cluster, implying that an angular size of 1′ corresponds to a length scale of 4.91 kpc.
