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Metallicity evolution in mergers of disk galaxies with black holes

Published online by Cambridge University Press:  12 October 2016

Antti Rantala  and
Peter H. Johansson
Antti Rantala
Affiliation:
Department of Physics, University of Helsinki, Gustaf Hällströmin katu 2a, 00560 Helsinki, Finlandantti.rantala@helsinki.fipeter.johansson@helsinki.fi
Peter H. Johansson
Affiliation:
Department of Physics, University of Helsinki, Gustaf Hällströmin katu 2a, 00560 Helsinki, Finlandantti.rantala@helsinki.fipeter.johansson@helsinki.fi
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Abstract

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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.

Keywords

galaxies: abundancesgalaxies: evolutiongalaxies: formationgalaxies: interactionsmethods: n-body simulations.
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S308: The Zeldovich Universe: Genesis and Growth of the Cosmic Web , June 2014 , pp. 490 - 491
Copyright
Copyright © International Astronomical Union 2016 

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