Discovery of the correspondence between intra-cluster radio emission and   a high pressure region detected through the Sunyaev-Zel'dovich effect
  We analyzed new 237 MHz and 614 MHz GMRT data of the most X-ray luminous galaxy cluster, RX J1347-1145. Our radio results are compared with the MUSTANG 90 GHz Sunyaev-Zel'dovich effect map and with re-processed Chandra and XMM-Newton archival data of this cluster. We point out for the first time in an unambiguous way the correspondence between a radio excess in a diffuse intra-cluster radio source and a hot region detected through both Sunyaev-Zel'dovich effect and X-ray observations. Our result indicates that electron re-acceleration in the excess emission of the radio mini-halo at the center of RX J1347-1145 is most likely related to a shock front propagating into the intra-cluster medium. 
C. Ferrari, H. T. Intema, E. Orr\`u, F. Govoni, M. Murgia, B. Mason,   H. Bourdin, K. M. Asad, P. Mazzotta, M. W. Wise, T. M...
astro-ph.CO astro-ph.HE