Hunting for large scale cold fronts in sloshing clusters
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The cold fronts found at large distances from the center in A2142 and Perseuschanged our understanding of sloshing: not anymore a small disturbance in thecore but a clusterwide phenomenon reaching half of the virial radius. Wepropose offset observations of four known sloshing clusters, showing the mostrobust indications of excess surface brightness extending beyond 400 kpc fromthe center in ROSAT/PSPC observations. We will search for the presence of largescale surface brightness discontinuities, contrary to the predictions ofsimulations. We will assess if A2142 and Perseus are unique or cold fronts atlarge radii are a common feature of sloshing clusters. This program will thusprovide strong constraints to our understanding of sloshing, ICM microphysics and cluster mergers. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]
