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Paper: Hydrodynamical Simulations of Galaxy Cluster Entropy Profiles
Volume: 453, Advances in Computational Astrophysics: Methods, Tools, and Outcome
Page: 263
Authors: Sijacki, D.; Vogelsberger, M.; Kereš, D.; Springel, V.; Hernquist, L.
Abstract: Entropy profiles of galaxy clusters are systematically different when simulated with SPH versus Eulerian mesh codes. This systematic difference has persisted until now, casting doubt hydrodynamical schemes can follow complex hydrodynamical flows in full cosmological settings reliably. We present results from a novel set of simulations performed both with a Lagrangian SPH code GADGET and with a recently developed moving mesh code AREPO. This suite of simulations sheds light on the physical and numerical mechanisms which are responsible for the systematic discrepancies in the entropy profiles.
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