Are galaxy groups metal-poor

Detailed measurements out to large radii have the potential of improving ourknowledge of the metal enrichment in galaxy groups and clusters, by directlyexploring most of the systems volume. While in recent years metallicitymeasurements out to R500 have been done for a sizable number of galaxy clusters,we are still missing systematic measurements at such radii for galaxy groups. Wepropose to observe a pilot sample of 4 galaxy groups to derive the abundanceprofiles out to R500. The requested observations will allow us to investigatewhether or not the lower metallicity observed for galaxy groups within 0.7R500persists at large radii or if the missing metals have been ejected to the outerregions. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]