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Galaxy Evolution in the context of radial metallicity gradients

Published online by Cambridge University Press:  03 March 2020

Patricia B. Tissera
Patricia B. Tissera*
Affiliation:
Physics Department, Universidad Andres Bello, 700 Fernandez Concha, Santiago, Chile. email: patricia.tissera@unab.cl
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Abstract

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The chemical abundances of the gas-phase and stellar components of disc galaxies are relevant to understand their formation and evolution. It has been shown that an inside-out disc formation yields negative chemical profiles. However, a large spread in metallicity gradients, including positive ones, has been reported by recent and more precise observations, suggesting the action of other physics processes such as gas outflows and inflows, radial migration, and mergers and interactions. Cosmological simulations that includes chemical models provide a tools to tackle the origin of the metallicity profiles and the action of those processes that might affect them as a function of time. I present a summary of the current state-of-knowledge from a numerical point of view and discuss the main results from the analysis of the EAGLE simulations.

Keywords

galaxies:formationgalaxies:evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium A30: Astronomy in Focus XXX , August 2018 , pp. 255 - 256
Copyright
© International Astronomical Union 2020

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