XMM-Newton observation of the Coma Galaxy cluster - The temperature structure in the central region

We present a temperature map and a temperature profile of the central part (r < 20' or 1/4 virial radius) of the Coma cluster. We combined 5 overlappi ng pointings made with XMM/EPIC/MOS and extracted spectra in boxes of 3.5' x 3.5'. The temperature distribution around the two central galaxies is rem arkably homogeneous (r < 10'), contrary to previous ASCA results, suggestin g that the core is actually in a relaxed state. At larger distance from the cluster center we do see evidence for recent matter accretion. We confirm the cool area in the direction of NGC 4921, probably due to gas stripped fr om an infalling. group. We find ir;dications of a hot front in the South We st, in the direction of NGC 4839, probably due to an adiabatic compression.