Authors: Hopkins et al. 2012
The authors discuss the results of high-resolution hydrodynamic simulations of galaxy mergers. They employ a sophisticated implementation of stellar feedback coupled to a `realistic' modelling of the multiphase ISM. They show that most of the stellar mass that ends up in the bulge is produced in situ, contrary to other recent simulations. The reason is the efficient disruption of GMC by stellar feedback which supplies more gas to the bulge than in other models. They compare their simulations to models assuming an effective equation of state.
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