The case of high metallicity in low-temperature nearby galaxy clusters

Recent work find evidence of an increase of the Iron abundance in clusters withtemperatures below 5 keV, up to a value about 3 times larger than that typicalof very hot clusters. This behaviour is likely related to fundamental processesof metal production and release in lowtemperature objects. Fromspatiallyunresolved ASCA metallicity measurements, we select 9 clusters with Z>0.6 Z_odot . For none of these, apart from one, is possibile to recover themetal abundance profile with the available data. We aim to make proper use ofXMMNewton to resolve spatially the metal distribution in the central regions ofthe 3 brightest objects never resolved spatially before. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]