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Metallicity evolution in mergers of disk galaxies with black holes

  • Antti Rantala (a1) and Peter H. Johansson (a1)

Abstract

We use the TreeSPH simulation code Gadget-3 including a recently improved smoothed particle hydrodynamics (SPH) module, a detailed metallicity evolution model and sophisticated subresolution feedback models for supernovae and supermassive black holes in order to study the metallicity evolution in disk galaxy mergers. In addition, we examine the simulated morphology, star formation histories, metallicity gradients and kinematic properties of merging galaxies and merger remnants. We will compare our simulation results with observations of the early-type Centaurus A galaxy and the currently colliding Antennae galaxies.

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Keywords

Metallicity evolution in mergers of disk galaxies with black holes

  • Antti Rantala (a1) and Peter H. Johansson (a1)

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