0.5–3 keV cut-out images for clump candidates (white regions). Left: Each Chandra image has a size of 200″ × 200″ (0.2 Mpc × 0.2 Mpc) and is smoothed with a Gaussian function with a kernel of 6 pixels. Filled black ellipses represent excluded wavdetect sources. The orange dashed circles mark the r₅₀₀ radius of background clusters (Zou et al. 2021). Right:r-band CFHT image showing the same field of view.