Multiwavelength image of galaxy cluster A3718. The background color map shows our composite i-, r-, and g-band image from the DES. Red colors and black contours trace the X-ray surface brightness measured in the 0.3–7 keV range by XMM-Newton, and white contours show the 943 MHz EMU total intensity surface brightness starting from 3σ with σ = 40 μJy beam⁻¹ and increasing by a factor of . See the text for more details.