EMC2 restoration and significance maps for the Chandra image of NGC 6240. (a) The original data set as recorded by the telescope. (b) The EMC2 reconstruction. (c, d) The significance map, thresholded at 1 and 3 standard deviations, respectively. The EMC2 reconstruction was performed with 500 burn‐in iterations and 2000 subsequent iterations used for the restoration.