Grayscale representation of the distribution of galaxies in the NW part of the Coma cluster (from SDSS) to highlight the position of the newly discovered Hα tails. Black contours represent the X-ray emission (XMM 0.4–1.3 keV, contour levels: 10, 20, 50, 100, 150 cnts per second per square degree with a smoothing of 10 pixel). Red contours represent the radio emission from the head-tail radio source 5C 04.081. Blue contours show the Hα NET emission for NGC 4848 from this work, Yagi et al. (2010), and Fossati et al. (2012).