Comparing semi-analytical and numerical modelling of the ICM chemical enrichment

Abstract

The dependence of iron abundance on cluster temperature is subject to continuous debate. There are some evidences of decreasing abundances from ∼0.7 to ∼0.3 times the solar metallicity in the temperature range of ∼3 - 10 keV [1], while a roughly constant value of ∼0.3 times solar is claimed [2]. Physical interpretation of these ambiguous observational results calls for robust theoretical models that can predict systematic trends for the enrichment of clusters of different masses. © 2007 Springer.